{"id":494,"date":"2026-04-04T04:45:09","date_gmt":"2026-04-04T04:45:09","guid":{"rendered":"https:\/\/hxcnc.com\/?page_id=494"},"modified":"2026-10-06T04:58:55","modified_gmt":"2026-10-06T04:58:55","slug":"zinc-alloy-die-cast-post-machined","status":"publish","type":"page","link":"https:\/\/hxcnc.com\/ro\/zinc-alloy-die-cast-post-machined\/","title":{"rendered":"Prelucrat prin turnare din aliaj de zinc"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"494\" class=\"elementor elementor-494\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-867ecce e-con-full e-flex e-con e-parent\" data-id=\"867ecce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c48ccb8 elementor-widget elementor-widget-html\" data-id=\"c48ccb8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t\n<script type=\"application\/ld+json\">\n{\n  \"@context\":\"https:\/\/schema.org\",\n  \"@graph\":[\n    {\"@type\":\"ItemList\",\"name\":\"Zinc Alloy Die-Cast Post-Machining Parts \u2014 7 Product Lines\",\"numberOfItems\":7,\n     \"itemListElement\":[\n      {\"@type\":\"ListItem\",\"position\":1,\"name\":\"Die-Cast Housing Post-Machined Part\",\"description\":\"Zamak 3\/5 die-cast housing with CNC precision post-machining; bore H8; face flatness \u00b10.05mm; deburr all edges.\"},\n      {\"@type\":\"ListItem\",\"position\":2,\"name\":\"Electronics Housing Precision Finishing\",\"description\":\"Zamak 3\/5 electronics housing; CNC-trimmed parting line; aperture \u00b10.05mm; EMI surface; chromate or paint.\"},\n      {\"@type\":\"ListItem\",\"position\":3,\"name\":\"Mounting Hole Precision Machining\",\"description\":\"Zamak 3\/5 die-cast part; CNC-drilled and reamed mounting holes \u00b10.05mm; face flatness \u00b10.05mm.\"},\n      {\"@type\":\"ListItem\",\"position\":4,\"name\":\"Thread Tapping Part\",\"description\":\"Zamak 3\/5 CNC-tapped threaded boss; M2\u2013M12; go\/no-go 100%; Helicoil option for repeated assembly.\"},\n      {\"@type\":\"ListItem\",\"position\":5,\"name\":\"Assembly Face Finishing Part\",\"description\":\"Zamak 3\/5 die-cast part; CNC-milled assembly mating face \u00b10.05mm; Ra \u22641.6\u03bcm; deburr and chamfer all edges.\"},\n      {\"@type\":\"ListItem\",\"position\":6,\"name\":\"Small Structural Part\",\"description\":\"Zamak 3\/5 small structural die-cast part; post-machined critical dimensions \u00b10.05mm; trimmed parting line.\"},\n      {\"@type\":\"ListItem\",\"position\":7,\"name\":\"Home Appliance Hardware Part\",\"description\":\"Zamak 3\/5 home appliance die-cast hardware; post-machined precision features; chromate or nickel plated.\"}\n    ]},\n    {\"@type\":\"FAQPage\",\"mainEntity\":[\n      {\"@type\":\"Question\",\"name\":\"What zinc alloy grades do you use for die-cast post-machining?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"We post-machine die castings in two main zinc alloy grades. Zamak 3 (ZA-3, UNS Z33520, Zn-4Al-0.04Mg): the most widely used die-casting zinc alloy \u2014 excellent castability, good dimensional stability, adequate mechanical properties (283 MPa UTS). Standard for electronics housings, small structural parts, and home appliance hardware. Zamak 5 (ZA-5, UNS Z35531, Zn-4Al-1Cu-0.04Mg): slightly harder and stronger than Zamak 3 (328 MPa UTS) with slightly less elongation \u2014 used where higher hardness or wear resistance is required, such as mounting brackets and connector bodies that must resist thread stripping. Key property of both zinc alloys relevant to post-machining: they machine extremely easily \u2014 zinc alloys have a machinability rating approaching brass C36000, allowing high cutting speeds and producing excellent surface finish with minimal tool wear. Die-cast zinc parts are post-machined to correct dimensional inaccuracies from the casting process: parting line flash, shrinkage at critical dimensions, and gate vestige that cannot be held to tolerance in die casting alone.\"}},\n      {\"@type\":\"Question\",\"name\":\"What dimensional accuracy can die casting achieve and why is post-machining needed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Die casting dimensional accuracy varies by feature type and part complexity: basic external dimensions: \u00b10.10\u20130.20mm typical for Zamak die castings; parting line features (dimensions across the parting line): \u00b10.15\u20130.30mm (worse than non-parting-line features due to flash and parting line variation); bores and holes cast in die: \u00b10.10\u20130.20mm; threaded holes tapped in die casting: thread quality varies and go\/no-go failure rate can be high without post-tap. Post-machining is needed to achieve: bore tolerance H7\/H8 (\u00b10.010\u20130.025mm) \u2014 critical for shaft or bearing fits; mounting hole position \u00b10.05mm \u2014 required for repeatable PCB or component assembly; assembly mating face flatness \u00b10.05mm \u2014 for tight-fit assembly interfaces; threaded holes with 100% go\/no-go inspection \u2014 critical for assembly reliability; parting line trimming to produce flush surfaces required by housing design. Post-machining of die castings is a standard production process, not a remediation for poor casting \u2014 it is the most economical way to produce complex-shaped parts with a subset of high-tolerance features.\"}},\n      {\"@type\":\"Question\",\"name\":\"Can you tap threads in zinc die castings and what thread sizes are practical?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes \u2014 zinc alloy taps easily, producing clean, well-formed threads. Practical thread range: M2 minimum (M1.6 possible but requires very careful tooling and breakage rate increases); M2 to M8 most economical range for zinc die castings; M12 maximum for standard boss dimensions in Zamak 3\/5. Zamak 3 and 5 have adequate shear strength for standard fastener torque up to M6 without thread inserts. For M6 and above in applications requiring repeated assembly cycles (10+ disassembly\/reassembly), Helicoil stainless inserts are recommended \u2014 zinc thread strips progressively with repeated high-torque assembly. For M4 and below with repeated high-cycle assembly: Helicoil inserts strongly recommended. We tap all threaded holes with calibrated spiral-point taps at controlled speed and install Helicoil inserts where specified. 100% go\/no-go gauge inspection on every tapped hole.\"}},\n      {\"@type\":\"Question\",\"name\":\"What surface treatments are available for zinc die-cast post-machined parts?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Zinc die castings are not inherently corrosion resistant \u2014 zinc oxide forms rapidly in humid environments, causing white rust (zinc carbonate) that reduces electrical conductivity and adhesion. Surface treatments: chromate conversion coating (clear or yellow): standard for electronics housings requiring EMI conductivity and mild corrosion protection \u2014 conductive, low cost, zero dimensional change, applied at room temperature. Electroless nickel plating (3\u20138\u03bcm): hard, corrosion resistant, good adhesion for paint \u2014 used for home appliance hardware and connector bodies. Electroplating (Ni\/Cr, Sn, Cu-Ni-Cr): decorative and functional plating for consumer electronics and appliance parts. Powder coating over chromate: colour and texture for consumer products \u2014 chromate adhesion base essential for zinc. Passivation: not as effective as on stainless steel but provides basic short-term corrosion inhibition. Note: machined surfaces after post-machining expose bare zinc \u2014 these surfaces must be treated separately or a second treatment cycle applied after post-machining.\"}}\n    ]},\n    {\"@type\":\"Product\",\"name\":\"Zinc Alloy Die-Cast Post-Machining Parts\",\"description\":\"CNC post-machining of zinc alloy die castings in Zamak 3\/Zamak 5. 7 product lines: die-cast housing post-machining, electronics housing precision finishing, mounting hole precision machining, thread tapping, assembly face finishing, small structural parts, and home appliance hardware. Bore H8, hole position \u00b10.05mm, face flatness \u00b10.05mm, 100% thread go\/no-go inspection. ISO 9001:2015. MOQ 1 piece.\",\n     \"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.9\",\"reviewCount\":\"89\",\"bestRating\":\"5\"}}\n  ]\n}\n<\/script>\n\n<style>\n\/*\n * Namespace : .ZNA  (Zinc Alloy)\n * CSS method: attribute-selector compound utility\n *             \u2014 twenty-eighth distinct approach\n * Pattern: .ZNA [role=\"...\"] utility selectors\n *   plus semantic class names without methodology overlap\n *   .ZNA [role=\"section\"] .zna-card .zna-card__title\n *   State: aria-selected=\"true\" on tab buttons\n *          aria-hidden=\"false\" on panels\n * Design: cool silver-gray, high-tech consumer precision,\n *         zinc metallic blue-silver accent\n *\/\n.ZNA{--bg:#F7F9FC;--wh:#FFF;--lt:#EEF3F8;--tx:#1F2937;--tx1:#5B6777;--tx2:#9CA8B4;--rule:#D7E0EA;\n  --a:#2563EB;--a2:#1D4ED8;--aA:rgba(37,99,235,.08);--aB:rgba(37,99,235,.15);--aC:rgba(37,99,235,.22);\n  --zn:#475569;--znA:rgba(71,85,105,.09);--znC:rgba(71,85,105,.24);\n  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.zna-intro{font-size:13px;color:var(--tx1);line-height:1.78;margin-bottom:20px;padding:15px 20px;background:var(--wh);border:1px solid var(--rule);border-radius:12px;}\n\/* card grid *\/\n.ZNA .zna-cgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}\n@media(max-width:1100px){.ZNA .zna-cgrid{grid-template-columns:1fr 1fr;}}\n@media(max-width:560px){.ZNA .zna-cgrid{grid-template-columns:1fr;}}\n.ZNA .zna-pc{background:var(--wh);border:1.5px solid var(--rule);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:all .22s;position:relative;}\n.ZNA .zna-pc::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;opacity:0;transition:opacity .2s;}\n.ZNA .zna-pc:hover::before{opacity:1;}\n.ZNA .zna-pc:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(31,41,55,.09);}\n.ZNA .zna-pc[data-t=\"q1\"]:hover{border-color:var(--q1C);}.ZNA .zna-pc[data-t=\"q1\"]::before{background:var(--q1);}\n.ZNA .zna-pc[data-t=\"q2\"]:hover{border-color:var(--q2C);}.ZNA .zna-pc[data-t=\"q2\"]::before{background:var(--q2);}\n.ZNA .zna-pc.wide{grid-column:span 2;}\n@media(max-width:560px){.ZNA .zna-pc.wide{grid-column:span 1;}}\n.ZNA .zna-pc .pi{overflow:hidden;flex-shrink:0;position:relative;}\n.ZNA .zna-pc .pi.L{aspect-ratio:16\/8;}\n.ZNA .zna-pc .pi.S{aspect-ratio:4\/3;}\n.ZNA .zna-pc .pi img{transition:transform .45s;}\n.ZNA .zna-pc:hover .pi img{transform:scale(1.05);}\n.ZNA .zna-pc .pi .pid{position:absolute;top:10px;right:10px;padding:3px 10px;border-radius:100px;background:rgba(255,255,255,.93);font-family:var(--fm);font-size:10px;font-weight:700;}\n.ZNA .zna-pc .pb{padding:16px 18px;flex:1;display:flex;flex-direction:column;}\n.ZNA .zna-pc .pb .cat{font-family:var(--fm);font-size:9px;color:var(--tx2);letter-spacing:2px;margin-bottom:4px;}\n.ZNA .zna-pc .pb .nm{font-family:var(--fh);font-size:16px;font-weight:700;color:var(--tx);margin-bottom:4px;line-height:1.2;}\n.ZNA .zna-pc.wide .pb .nm{font-size:19px;}\n.ZNA .zna-pc .pb .dsc{font-size:12px;color:var(--tx1);line-height:1.6;margin-bottom:10px;flex:1;}\n.ZNA .zna-pc .pb .tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:10px;}\n.ZNA .zna-pc .pb .ft{display:flex;align-items:center;justify-content:space-between;padding-top:9px;border-top:1px solid var(--rule);}\n.ZNA .zna-pc .pb .ft .mat{font-family:var(--fm);font-size:10px;color:var(--tx2);}\n.ZNA .zna-pc .pb .ft .cl{font-family:var(--fh);font-size:11px;font-weight:700;color:var(--a);letter-spacing:.5px;text-transform:uppercase;transition:letter-spacing .2s;}\n.ZNA .zna-pc:hover .pb .ft .cl{letter-spacing:1px;}\n.ZNA .zna-pc .pb .ft .cl::after{content:' \u2192';}\n.ZNA .zna-pfoot{margin-top:12px;padding:12px 18px;background:var(--lt);border:1px solid var(--rule);border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}\n.ZNA .zna-pfoot .pm{font-family:var(--fm);font-size:11px;color:var(--tx2);}\n.ZNA .zna-pfoot .pm span{color:var(--tx1);font-weight:500;}\n\n\/* cap *\/\n.ZNA .zna-cap{padding-block:88px;background:var(--wh);}\n.ZNA .zna-cap .cgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:48px;}\n@media(max-width:900px){.ZNA .zna-cap .cgrid{grid-template-columns:1fr 1fr;}}\n.ZNA .zna-cap .cc{background:var(--lt);border:1.5px solid var(--rule);border-radius:20px;padding:26px;position:relative;overflow:hidden;transition:all .22s;}\n.ZNA .zna-cap .cc::after{content:attr(data-n);position:absolute;bottom:-8px;right:10px;font-family:var(--fh);font-size:88px;font-weight:900;color:var(--znA);line-height:1;pointer-events:none;}\n.ZNA .zna-cap .cc:hover{background:var(--wh);border-color:var(--znC);box-shadow:0 8px 26px rgba(71,85,105,.1);}\n.ZNA .zna-cap .cc .ico{font-size:28px;margin-bottom:12px;}\n.ZNA .zna-cap .cc .ttl{font-family:var(--fh);font-size:18px;font-weight:700;color:var(--tx);margin-bottom:8px;}\n.ZNA .zna-cap .cc .dsc{font-size:13px;color:var(--tx1);line-height:1.7;margin-bottom:12px;}\n.ZNA .zna-cap .cc .specs{display:flex;flex-wrap:wrap;gap:5px;}\n.ZNA .zna-cap .cc .specs .sp{padding:3px 9px;border-radius:100px;background:var(--znA);border:1px solid var(--znC);font-family:var(--fm);font-size:10px;color:var(--zn);}\n\n\/* tol *\/\n.ZNA .zna-tol{padding-block:88px;background:var(--lt);}\n.ZNA .zna-tol .cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px;}\n@media(max-width:860px){.ZNA .zna-tol .cols{grid-template-columns:1fr;}}\n.ZNA .zna-dp{background:var(--wh);border:1.5px solid var(--rule);border-radius:24px;overflow:hidden;}\n.ZNA .zna-dp .dh{padding:16px 24px;border-bottom:1px solid var(--rule);background:var(--lt);display:flex;align-items:center;gap:10px;}\n.ZNA .zna-dp .dh .dico{width:34px;height:34px;border-radius:8px;background:var(--znA);border:1px solid var(--znC);display:flex;align-items:center;justify-content:center;font-size:15px;}\n.ZNA .zna-dp .dh .dttl{font-family:var(--fh);font-size:16px;font-weight:700;color:var(--tx);}\n.ZNA .zna-tr{display:flex;align-items:center;gap:14px;padding:11px 24px;border-bottom:1px solid var(--rule);transition:background .15s;}\n.ZNA .zna-tr:last-child{border-bottom:none;}\n.ZNA .zna-tr:hover{background:var(--lt);}\n.ZNA .zna-tr .tl{font-family:var(--fm);font-size:10px;color:var(--tx2);width:140px;flex-shrink:0;letter-spacing:.5px;text-transform:uppercase;}\n.ZNA .zna-tr .bw{flex:1;height:6px;background:var(--lt);border-radius:3px;overflow:hidden;}\n.ZNA .zna-tr .bw .fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--zn),var(--a));transition:width .9s ease;}\n.ZNA .zna-tr .vl{font-family:var(--fm);font-size:11px;font-weight:700;color:var(--zn);white-space:nowrap;min-width:90px;text-align:right;}\n.ZNA .zna-sg{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--rule);}\n.ZNA .zna-sg .sc{background:var(--wh);padding:18px 22px;transition:background .15s;}\n.ZNA .zna-sg .sc:hover{background:var(--lt);}\n.ZNA .zna-sg .sc .lbl{font-family:var(--fm);font-size:9px;color:var(--tx2);letter-spacing:2px;text-transform:uppercase;margin-bottom:7px;}\n.ZNA .zna-sg .sc .val{font-family:var(--fh);font-size:21px;font-weight:900;color:var(--zn);line-height:1;margin-bottom:4px;}\n.ZNA .zna-sg .sc .val sup{font-size:12px;}\n.ZNA .zna-sg .sc .note{font-size:11px;color:var(--tx1);line-height:1.6;}\n\n\/* surf scroll *\/\n.ZNA .zna-srf{padding-block:88px;background:var(--wh);}\n.ZNA .zna-srf .scroll{overflow-x:auto;margin-top:48px;padding-bottom:12px;}\n.ZNA .zna-srf .scroll::-webkit-scrollbar{height:4px;}\n.ZNA .zna-srf .scroll::-webkit-scrollbar-thumb{background:var(--rule);border-radius:2px;}\n.ZNA .zna-srf .srow{display:flex;gap:14px;min-width:max-content;}\n.ZNA .zna-sc{width:228px;flex-shrink:0;background:var(--lt);border:1.5px solid var(--rule);border-radius:16px;padding:22px;transition:all .22s;position:relative;overflow:hidden;}\n.ZNA .zna-sc::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--zn);opacity:0;transition:opacity .2s;}\n.ZNA .zna-sc:hover{border-color:var(--znC);transform:translateY(-3px);box-shadow:0 8px 22px rgba(71,85,105,.09);}\n.ZNA .zna-sc:hover::before{opacity:1;}\n.ZNA .zna-sc .sico{font-size:26px;margin-bottom:10px;}\n.ZNA .zna-sc .snm{font-family:var(--fh);font-size:16px;font-weight:700;color:var(--tx);margin-bottom:6px;}\n.ZNA .zna-sc .sdc{font-size:12px;color:var(--tx1);line-height:1.65;margin-bottom:10px;}\n.ZNA .zna-sc .sap{display:flex;flex-wrap:wrap;gap:4px;}\n\n\/* why *\/\n.ZNA .zna-why{padding-block:88px;background:var(--lt);}\n.ZNA .zna-why .wg{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:24px;overflow:hidden;margin-top:48px;}\n@media(max-width:900px){.ZNA .zna-why .wg{grid-template-columns:1fr 1fr;}}\n.ZNA .zna-why .wc{background:var(--wh);padding:36px 28px;position:relative;overflow:hidden;transition:background .2s;}\n.ZNA .zna-why .wc:hover{background:var(--lt);}\n.ZNA .zna-why .wc::after{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--zn);transform:scaleX(0);transition:transform .28s;transform-origin:left;}\n.ZNA .zna-why .wc:hover::after{transform:scaleX(1);}\n.ZNA .zna-why .wc .big{font-family:var(--fh);font-size:52px;font-weight:900;color:var(--znA);line-height:1;margin-bottom:14px;}\n.ZNA .zna-why .wc:hover .big{color:rgba(71,85,105,.16);}\n.ZNA .zna-why .wc .ttl{font-family:var(--fh);font-size:17px;font-weight:700;color:var(--tx);margin-bottom:8px;}\n.ZNA .zna-why .wc .dsc{font-size:13px;color:var(--tx1);line-height:1.72;}\n\n\/* faq *\/\n.ZNA .zna-faq{padding-block:88px;background:var(--wh);}\n.ZNA .zna-faq .fg{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:48px;}\n@media(max-width:860px){.ZNA .zna-faq .fg{grid-template-columns:1fr;}}\n.ZNA .zna-fi{background:var(--lt);border:1.5px solid var(--rule);border-radius:16px;overflow:hidden;transition:border-color .2s;}\n.ZNA .zna-fi[aria-expanded=\"true\"]{border-color:var(--znC);}\n.ZNA .zna-fi .fq{width:100%;display:flex;align-items:center;gap:14px;padding:17px 20px;background:transparent;border:none;cursor:pointer;text-align:left;transition:background .15s;}\n.ZNA .zna-fi .fq:hover{background:var(--wh);}\n.ZNA .zna-fi[aria-expanded=\"true\"] .fq{background:var(--wh);}\n.ZNA .zna-fi .fq .fqico{width:30px;height:30px;border-radius:50%;background:var(--znA);border:1px solid var(--znC);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-family:var(--fm);font-size:12px;font-weight:700;color:var(--zn);transition:all .25s;}\n.ZNA .zna-fi[aria-expanded=\"true\"] .fq .fqico{background:var(--zn);color:#fff;border-color:var(--zn);}\n.ZNA .zna-fi .fq .fqtxt{flex:1;font-family:var(--fh);font-size:15px;font-weight:700;color:var(--tx);line-height:1.3;}\n.ZNA .zna-fi .fq .farr{font-size:13px;color:var(--tx2);transition:transform .25s;flex-shrink:0;}\n.ZNA .zna-fi[aria-expanded=\"true\"] .fq .farr{transform:rotate(180deg);color:var(--zn);}\n.ZNA .zna-fi .fans{max-height:0;overflow:hidden;transition:max-height .35s ease;}\n.ZNA .zna-fi .fans .inner{padding:0 20px 16px 64px;font-size:13px;color:var(--tx1);line-height:1.78;}\n.ZNA .zna-fi[aria-expanded=\"true\"] .fans{max-height:600px;}\n.ZNA .zna-faq .fnote{text-align:center;font-family:var(--fm);font-size:11px;color:var(--tx2);margin-top:16px;}\n\n\/* inds *\/\n.ZNA .zna-ind{padding-block:88px;background:var(--lt);}\n.ZNA .zna-ind .igrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:48px;}\n@media(max-width:900px){.ZNA .zna-ind .igrid{grid-template-columns:1fr 1fr;}}\n.ZNA .zna-ind .ind{border-radius:20px;overflow:hidden;border:1.5px solid var(--rule);position:relative;transition:all .25s;}\n.ZNA .zna-ind .ind:hover{border-color:var(--znC);}\n.ZNA .zna-ind .ind:hover .ii img{transform:scale(1.05);}\n.ZNA .zna-ind .ind .ii{overflow:hidden;aspect-ratio:16\/9;}\n.ZNA .zna-ind .ind .ii img{filter:brightness(.72) saturate(1.1);transition:transform .4s;}\n.ZNA .zna-ind .ind .ov{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(31,41,55,.82));pointer-events:none;}\n.ZNA .zna-ind .ind .bd{position:absolute;bottom:0;left:0;right:0;padding:18px 20px;}\n.ZNA .zna-ind .ind .bd .ico{font-size:22px;margin-bottom:5px;}\n.ZNA .zna-ind .ind .bd .nm{font-family:var(--fh);font-size:18px;font-weight:700;color:#fff;margin-bottom:4px;}\n.ZNA .zna-ind .ind .bd .dc{font-size:12px;color:rgba(255,255,255,.75);line-height:1.55;}\n\n\/* cta *\/\n.ZNA .zna-cta{position:relative;padding-block:112px;overflow:hidden;}\n.ZNA .zna-cta .cbg{position:absolute;inset:0;}\n.ZNA .zna-cta .cbg img{filter:brightness(.22) saturate(1.3);}\n.ZNA .zna-cta .cov{position:absolute;inset:0;background:linear-gradient(135deg,rgba(71,85,105,.9),rgba(37,99,235,.65));}\n.ZNA .zna-cta .cdots{position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,.07) 1px,transparent 1px);background-size:28px 28px;}\n.ZNA .zna-cta .cin{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;}\n@media(max-width:900px){.ZNA .zna-cta .cin{grid-template-columns:1fr;gap:40px;}}\n.ZNA .zna-cta .clbl{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;font-family:var(--fm);font-size:10px;letter-spacing:3px;text-transform:uppercase;color:rgba(255,255,255,.65);}\n.ZNA .zna-cta .clbl::before{content:'';width:16px;height:1px;background:rgba(255,255,255,.5);}\n.ZNA .zna-cta h2{font-family:var(--fh);font-size:clamp(30px,4vw,58px);font-weight:900;color:#fff;line-height:.96;letter-spacing:-1.5px;margin-bottom:18px;}\n.ZNA .zna-cta p{font-size:15px;color:rgba(255,255,255,.78);line-height:1.8;margin-bottom:32px;}\n.ZNA .zna-cta .cbtns{display:flex;gap:12px;flex-wrap:wrap;}\n.ZNA .zna-cta .cfn{margin-top:18px;font-family:var(--fm);font-size:11px;color:rgba(255,255,255,.42);}\n.ZNA .cta-list{display:flex;flex-direction:column;gap:12px;}\n.ZNA .cta-list .ci{display:flex;align-items:flex-start;gap:14px;padding:16px 18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:14px;backdrop-filter:blur(4px);transition:background .2s;}\n.ZNA .cta-list .ci:hover{background:rgba(255,255,255,.13);}\n.ZNA .cta-list .ci .cico{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;}\n.ZNA .cta-list .ci .ct{font-family:var(--fh);font-size:15px;font-weight:700;color:#fff;margin-bottom:3px;}\n.ZNA .cta-list .ci .cd{font-size:12px;color:rgba(255,255,255,.7);line-height:1.6;}\n<\/style>\n\n<div class=\"ZNA\">\n<div class=\"zna-bc\"><div class=\"zna-wrap\"><div class=\"row\"><a href=\"\/\">Home<\/a><span style=\"color:var(--rule);margin:0 4px;\">\/<\/span><a href=\"\/product\/\">Products<\/a><span style=\"color:var(--rule);margin:0 4px;\">\/<\/span><span style=\"color:var(--tx);font-weight:500;\">Zinc Alloy Die-Cast Post-Machined Parts<\/span><\/div><\/div><\/div>\n\n<!-- HERO -->\n<section class=\"zna-hero\">\n  <div class=\"bg-dot\"><\/div><div class=\"bg-tint\"><\/div>\n  <div class=\"zna-wrap\">\n    <div class=\"hgrid\">\n      <div class=\"hleft\">\n        <div class=\"kicker\"><div class=\"badge\">Product Category<\/div><div class=\"code\">ZNA \u2014 7 Product Lines<\/div><\/div>\n        <h1>Zinc Alloy<br>Die-Cast<br><em>Post-Machined<\/em><\/h1>\n        <p class=\"sub\">7 product lines of CNC precision post-machining on Zamak 3 and Zamak 5 zinc alloy die castings \u2014 bringing critical dimensions to \u00b10.05mm, holes to H8, threads to 100% go\/no-go, and assembly mating faces to Ra \u22641.6\u03bcm. Die casting shapes; post-machining achieves precision.<\/p>\n        <!-- die-cast vs post-machine tolerance table \u2014 unique hero element -->\n        <div class=\"tbl\">\n          <div class=\"tbl-t\">Die-Cast Accuracy vs Post-Machined Accuracy<\/div>\n          <div class=\"tbl-row hdr\">\n            <div class=\"tc th\">Feature<\/div>\n            <div class=\"tc th\">Die-Cast Only<\/div>\n            <div class=\"tc th\">Post-Machined<\/div>\n          <\/div>\n          <div class=\"tbl-row\"><div class=\"tc\">Bore \/ hole<\/div><div class=\"tc\">\u00b10.10\u20130.20mm<\/div><div class=\"tc hi\">H8 \u00b10.02mm \u25c0<\/div><\/div>\n          <div class=\"tbl-row\"><div class=\"tc\">Hole position<\/div><div class=\"tc\">\u00b10.15\u20130.30mm<\/div><div class=\"tc hi\">\u00b10.05mm \u25c0<\/div><\/div>\n          <div class=\"tbl-row\"><div class=\"tc\">Mating face flat<\/div><div class=\"tc\">\u00b10.2\u20130.5mm<\/div><div class=\"tc hi\">\u00b10.05mm \u25c0<\/div><\/div>\n          <div class=\"tbl-row\"><div class=\"tc\">Thread quality<\/div><div class=\"tc\">Variable<\/div><div class=\"tc hi\">100% go\/no-go \u25c0<\/div><\/div>\n        <\/div>\n        <div class=\"btns\"><a href=\"#znaquote\" class=\"zna-btn\" data-v=\"fill\">Request Quotation \u2192<\/a><a href=\"#znaquote\" class=\"zna-btn\" data-v=\"ring\">Send Drawing<\/a><\/div>\n      <\/div>\n      <div class=\"hright\">\n        <div class=\"ic\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Zinc-Alloy-Die-Cast-Post-Machined.webp\" alt=\"Zinc Alloy Die-Cast Post-Machined Housing Electronics Connector CNC\"><\/div>\n        <div class=\"sc\"><div class=\"sv\">\u00b10.05mm<\/div><div class=\"sl\">Post-machined<\/div><\/div>\n        <div class=\"ic\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Zinc-Alloys.webp\" alt=\"Zamak 3 5 Zinc Die-Cast Tapped Thread Housing Appliance CNC\"><\/div>\n        <div class=\"sc\"><div class=\"sv\">100%<\/div><div class=\"sl\">Go\/No-Go<\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- BAND -->\n<div class=\"zna-band\">\n  <div class=\"bc\"><div class=\"bv\">7<\/div><div class=\"bl\">Product Lines<\/div><\/div>\n  <div class=\"bc\"><div class=\"bv\">\u00b10.05<sup>mm<\/sup><\/div><div class=\"bl\">Post-Machined<\/div><\/div>\n  <div class=\"bc\"><div class=\"bv\">H8<\/div><div class=\"bl\">Bore Std<\/div><\/div>\n  <div class=\"bc\"><div class=\"bv\">100%<\/div><div class=\"bl\">Thread Inspect<\/div><\/div>\n  <div class=\"bc\"><div class=\"bv\">24<sup>hr<\/sup><\/div><div class=\"bl\">Quote<\/div><\/div>\n<\/div>\n\n<!-- TICKER -->\n<div class=\"zna-tick\">\n  <div class=\"track\">\n    <span class=\"item\">Die-Cast Housing Post-Machine <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Electronics Housing Finish <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Mounting Hole Precision <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Thread Tapping <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Assembly Face Finish <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Small Structural Part <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Appliance Hardware Part <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Die-Cast Housing Post-Machine <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Electronics Housing Finish <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Mounting Hole Precision <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Thread Tapping <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Assembly Face Finish <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Small Structural Part <span class=\"gem\">\u2726<\/span><\/span>\n    <span class=\"item\">Appliance Hardware Part <span class=\"gem\">\u2726<\/span><\/span>\n  <\/div>\n<\/div>\n\n<!-- PRODUCTS -->\n<section class=\"zna-prod\">\n  <div class=\"zna-wrap\">\n    <div class=\"ph\">\n      <div>\n        <div class=\"zna-eyebrow\">Full Product Range<\/div>\n        <h2 class=\"zna-h2\">7 Zinc Alloy Post-Machined Parts Across<br><span class=\"ha\">2 Application Categories<\/span><\/h2>\n        <p class=\"pn\">Zamak 3 \u00b7 Zamak 5 \u00b7 Bore H8 \u00b7 Hole \u00b10.05mm \u00b7 Thread 100% go\/no-go \u00b7 Chromate \/ Nickel Plated \u00b7 MOQ 1 piece<\/p>\n      <\/div>\n      <a href=\"#znaquote\" class=\"zna-btn\" data-v=\"sm\">Request All Products \u2192<\/a>\n    <\/div>\n    <div class=\"layout\">\n      <div class=\"zna-nav\">\n        <div class=\"nh\">Product Categories<\/div>\n        <button class=\"nb\" aria-selected=\"true\" data-target=\"pane-prec\">\n          <span class=\"dot\" style=\"background:var(--q1);\"><\/span>\n          <div class=\"tx\"><div class=\"ttl\">Precision Machining Operations<\/div><div class=\"sub\">Housing \u00b7 Mounting holes \u00b7 Thread tapping \u00b7 Assembly face \u00b7 Structural<\/div><\/div>\n          <span class=\"cnt\">5<\/span>\n        <\/button>\n        <button class=\"nb\" aria-selected=\"false\" data-target=\"pane-elec\">\n          <span class=\"dot\" style=\"background:var(--q2);\"><\/span>\n          <div class=\"tx\"><div class=\"ttl\">Electronics &amp; Appliance Parts<\/div><div class=\"sub\">Electronics housing finish \u00b7 Appliance hardware<\/div><\/div>\n          <span class=\"cnt\">2<\/span>\n        <\/button>\n      <\/div>\n      <div>\n        <!-- PANEL 1 -->\n        <div class=\"zna-pane\" id=\"pane-prec\" aria-hidden=\"false\">\n          <div class=\"zna-bnr\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Housing-Bore-Mounting-Holes-Thread-Tapping.webp\" alt=\"Zamak 3 5 Zinc Die-Cast Post-Machined Bore Hole Thread Assembly Face CNC\">\n            <div class=\"bov\"><\/div><div class=\"bbd\"><span class=\"dot\" style=\"background:var(--q1);\"><\/span><span class=\"ttl\">Precision Machining Operations<\/span><span class=\"meta\">5 Products \u00b7 ZNA-001\/003\/004\/005\/006<\/span><a href=\"#znaquote\" class=\"zna-btn cta\" data-v=\"sm\">Quote \u2192<\/a><\/div><\/div>\n          <div class=\"zna-intro\">Five zinc alloy die-cast post-machining operations \u2014 housing bore and precision machining, mounting hole drilling and reaming, thread tapping, assembly mating face milling, and small structural part precision finishing. Zinc alloy (Zamak 3\/5) machines at high cutting speed with excellent surface finish and minimal tool wear \u2014 the combination of die casting (for complex shape) and post-machining (for precision features) produces parts at lower total cost than machined-from-solid or precision casting alone.<\/div>\n          <div class=\"zna-cgrid\">\n            <div class=\"zna-pc wide\" data-t=\"q1\">\n              <div class=\"pi L\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Housing-Bore-Mounting-Holes-Thread-Tapping.webp\" alt=\"Zamak 3 5 Zinc Die-Cast Housing Bore H8 Mounting Hole \u00b10.05mm Thread 100% Go\/No-Go CNC Post-Machine\"><div class=\"pid\" style=\"color:var(--q1);\">ZNA-001\/003\/004<\/div><\/div>\n              <div class=\"pb\">\n                <div class=\"cat\">PRECISION \/ 001\/003\/004 \u2014 FEATURED<\/div>\n                <div class=\"nm\">Housing Bore, Mounting Holes &amp; Thread Tapping<\/div>\n                <div class=\"dsc\">Three core CNC post-machining operations on Zamak 3\/5 zinc alloy die castings that together convert a near-net-shape casting into a precision assembly-ready part. (1) Housing bore H8 post-machining: bore as-cast \u00b10.10\u20130.20mm; CNC bored to H8 (\u00b10.013\u20130.027mm) for shaft, bushing, or bearing seat fit. Concentricity \u22640.05mm. Bore Ra \u22641.6\u03bcm. (2) Mounting hole precision drilling and reaming: as-cast hole position \u00b10.15\u20130.30mm; CNC drilled and reamed to \u00b10.05mm position with H8 diameter tolerance for repeatable PCB, bracket, or chassis component alignment. Every hole 100% position-checked with pin gauge. (3) Thread tapping: M2\u2013M12 CNC-tapped with calibrated spiral-point taps at controlled speed and torque. 100% go\/no-go gauge inspection on every tapped hole \u2014 not sampled, not assumed from process control alone. Helicoil stainless inserts installed in specified threads requiring repeated assembly cycles (M4 and above with &gt;20 assembly cycles). All three operations performed in single CNC setup where possible \u2014 minimising re-fixturing and maintaining feature-to-feature relationships.<\/div>\n                <div class=\"tags\"><span class=\"zna-chip\" data-c=\"q1\">Bore H8<\/span><span class=\"zna-chip\" data-c=\"q1\">Hole \u00b10.05mm<\/span><span class=\"zna-chip\" data-c=\"q1\">Thread 100% go\/no-go<\/span><span class=\"zna-chip\" data-c=\"n\">Helicoil option<\/span><\/div>\n                <div class=\"ft\"><span class=\"mat\">Zamak 3 \u00b7 Zamak 5<\/span><span class=\"cl\">Get Quote<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"zna-pc\" data-t=\"q1\">\n              <div class=\"pi S\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Assembly-Face-Finishing.jpg\" alt=\"Zamak 3 5 Zinc Die-Cast Assembly Mating Face Mill \u00b10.05mm Ra 1.6\u03bcm CNC Deburr\"><div class=\"pid\" style=\"color:var(--q1);\">ZNA-005<\/div><\/div>\n              <div class=\"pb\"><div class=\"cat\">PRECISION \/ 005<\/div><div class=\"nm\">Assembly Face Finishing<\/div><div class=\"dsc\">CNC-milled assembly mating faces on zinc die-cast parts. As-cast face flatness \u00b10.2\u20130.5mm \u2014 inadequate for tight-fit assembly. Post-milled to \u00b10.05mm flatness and Ra \u22641.6\u03bcm. All edges chamfered \u22650.3\u00d745\u00b0 or deburred by hand. Parting line trimmed flush. For housing mating interfaces, PCB mounting faces, and connector seating surfaces.<\/div><div class=\"tags\"><span class=\"zna-chip\" data-c=\"q1\">\u00b10.05mm flat<\/span><span class=\"zna-chip\" data-c=\"q1\">Ra \u22641.6\u03bcm<\/span><\/div><div class=\"ft\"><span class=\"mat\">Zamak 3 \u00b7 Zamak 5<\/span><span class=\"cl\">Get Quote<\/span><\/div><\/div>\n            <\/div>\n            <div class=\"zna-pc\" data-t=\"q1\">\n              <div class=\"pi S\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Small-Structural-Parts.jpg\" alt=\"Zamak 3 5 Zinc Small Structural Part Post-Machined Critical Dimension Parting Line CNC\"><div class=\"pid\" style=\"color:var(--q1);\">ZNA-006<\/div><\/div>\n              <div class=\"pb\"><div class=\"cat\">PRECISION \/ 006<\/div><div class=\"nm\">Small Structural Parts<\/div><div class=\"dsc\">Zamak 3\/5 small structural die-cast parts with post-machined critical dimensions to \u00b10.05mm. Parting line trimmed flush; gate vestige removed; all burrs removed from machined features. Critical length\/height dimensions machined to tolerance. CMM spot inspection on first article.<\/div><div class=\"tags\"><span class=\"zna-chip\" data-c=\"q1\">Critical dims \u00b10.05mm<\/span><span class=\"zna-chip\" data-c=\"n\">Parting line trimmed<\/span><\/div><div class=\"ft\"><span class=\"mat\">Zamak 3 \u00b7 Zamak 5<\/span><span class=\"cl\">Get Quote<\/span><\/div><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"zna-pfoot\"><div class=\"pm\">Materials: <span>Zamak 3 (Z33520) \u00b7 Zamak 5 (Z35531) \u00b7 Zamak 2<\/span><\/div><a href=\"#znaquote\" class=\"zna-btn\" data-v=\"sm\">Request All 5 \u2192<\/a><\/div>\n        <\/div>\n        <!-- PANEL 2 -->\n        <div class=\"zna-pane\" id=\"pane-elec\" aria-hidden=\"true\">\n          <div class=\"zna-bnr\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Electronics-Housing-Precision-Finishing.webp\" alt=\"Zamak 3 5 Zinc Electronics Housing Finish Appliance Hardware Post-Machined CNC Chromate Nickel\">\n            <div class=\"bov\"><\/div><div class=\"bbd\"><span class=\"dot\" style=\"background:var(--q2);\"><\/span><span class=\"ttl\">Electronics &amp; Appliance Parts<\/span><span class=\"meta\">2 Products \u00b7 ZNA-002\/007<\/span><a href=\"#znaquote\" class=\"zna-btn cta\" data-v=\"sm\">Quote \u2192<\/a><\/div><\/div>\n          <div class=\"zna-intro\">Two zinc die-cast post-machining product lines for electronics and home appliance applications \u2014 electronics housing precision finishing and home appliance hardware parts. Zinc alloy provides inherent EMI shielding comparable to aluminium \u2014 standard for electronics housings where the casting produces the complex external geometry and post-machining achieves the precision connector apertures, PCB mounting features, and mating faces required by the design. Chromate conversion coating (conductive) standard for electronics housings; nickel plating for appliance hardware requiring decorative finish.<\/div>\n          <div class=\"zna-cgrid\">\n            <div class=\"zna-pc wide\" data-t=\"q2\">\n              <div class=\"pi L\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/Electronics-Housing-Precision-Finishing.webp\" alt=\"Zamak 3 5 Zinc Electronics Housing Precision Finish Aperture Parting Line CNC Chromate EMI\"><div class=\"pid\" style=\"color:var(--q2);\">ZNA-002<\/div><\/div>\n              <div class=\"pb\">\n                <div class=\"cat\">ELECTRONICS \/ 002 \u2014 FEATURED<\/div>\n                <div class=\"nm\">Electronics Housing Precision Finishing<\/div>\n                <div class=\"dsc\">Zamak 3\/5 zinc alloy die-cast electronics housing precision post-machining \u2014 CNC operations that transform a near-net-shape casting into an assembly-ready electronics enclosure. Operations performed: parting line trimming (CNC mills the casting parting flash to a flat, flush surface within \u00b10.05mm of nominal \u2014 parting line flash is inevitable in die casting and must be machined to achieve a sealing or mating surface); connector aperture finishing (CNC-milled aperture \u00b10.05mm position and \u00b10.05mm size \u2014 critical for panel-mount connector alignment and electromagnetic compatibility of the connector-to-housing interface); PCB mounting boss top-facing (face flatness \u00b10.05mm for even PCB compression and board-to-housing height control); screw boss tapping (M2\u2013M5 with 100% go\/no-go inspection \u2014 electronics housings require reliable repeated assembly cycles without thread failure); surface preparation for chromate or paint (deburr all edges \u22650.2\u00d745\u00b0, clean all machined surfaces of swarf). Chromate conversion coating applied after post-machining \u2014 conductive chromate maintains EMI shielding continuity at housing mating interfaces. Bare machined zinc surfaces re-treated after post-machining to restore corrosion protection.<\/div>\n                <div class=\"tags\"><span class=\"zna-chip\" data-c=\"q2\">Aperture \u00b10.05mm<\/span><span class=\"zna-chip\" data-c=\"q2\">Parting line trimmed<\/span><span class=\"zna-chip\" data-c=\"q2\">Chromate conductive<\/span><span class=\"zna-chip\" data-c=\"n\">EMI shielding<\/span><\/div>\n                <div class=\"ft\"><span class=\"mat\">Zamak 3 \u00b7 Zamak 5<\/span><span class=\"cl\">Get Quote<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"zna-pc\" data-t=\"q2\">\n              <div class=\"pi S\"><img decoding=\"async\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/04\/home-appliance-die-cast-hardware-scaled.webp\" alt=\"Zamak 3 5 Zinc Home Appliance Hardware Post-Machined Nickel Chromate Plated CNC\"><div class=\"pid\" style=\"color:var(--q2);\">ZNA-007<\/div><\/div>\n              <div class=\"pb\"><div class=\"cat\">APPLIANCE \/ 007<\/div><div class=\"nm\">Home Appliance Hardware Parts<\/div><div class=\"dsc\">Zamak 3\/5 home appliance die-cast hardware with post-machined precision features \u2014 mounting holes \u00b10.05mm, thread tapping M2\u2013M8 (100% go\/no-go), mating face Ra \u22641.6\u03bcm, and parting line trimming. Nickel plated (3\u20138\u03bcm) for decorative corrosion protection, or chromate for economical protection. ESD-safe packaging on request for assembly line environments.<\/div><div class=\"tags\"><span class=\"zna-chip\" data-c=\"q2\">Nickel \/ chromate plated<\/span><span class=\"zna-chip\" data-c=\"n\">100% thread inspect<\/span><\/div><div class=\"ft\"><span class=\"mat\">Zamak 3 \u00b7 Zamak 5<\/span><span class=\"cl\">Get Quote<\/span><\/div><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"zna-pfoot\"><div class=\"pm\">Materials: <span>Zamak 3 (Z33520) \u00b7 Zamak 5 (Z35531)<\/span><\/div><a href=\"#znaquote\" class=\"zna-btn\" data-v=\"sm\">Request All 2 \u2192<\/a><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- CAPABILITY -->\n<section class=\"zna-cap\" role=\"region\" data-bg=\"wh\">\n  <div class=\"zna-wrap\">\n    <div class=\"zna-eyebrow\">Manufacturing Capability<\/div>\n    <h2 class=\"zna-h2\">What Zinc Die-Cast Post-Machining<br><span class=\"ha\">Actually Corrects<\/span><\/h2>\n    <div class=\"cgrid\">\n      <div class=\"cc\" data-n=\"01\"><div class=\"ico\">\ud83c\udfaf<\/div><div class=\"ttl\">Bore H8 from As-Cast \u00b10.20mm<\/div><div class=\"dsc\">As-cast zinc bores are \u00b10.10\u20130.20mm \u2014 adequate for clearance holes, not for bearing seats, shaft fits, or bushing housings. CNC boring to H8 (\u00b10.013\u20130.027mm) in a single CNC operation. Zinc machines extremely cleanly at bore size \u2014 good dimensional control from a single boring pass. Concentricity \u22640.05mm bore-to-OD or bore-to-bore in multi-bore housings.<\/div><div class=\"specs\"><span class=\"sp\">H8 \u00b10.02mm<\/span><span class=\"sp\">Conc. \u22640.05mm<\/span><\/div><\/div>\n      <div class=\"cc\" data-n=\"02\"><div class=\"ico\">\ud83d\udd29<\/div><div class=\"ttl\">Thread 100% Go\/No-Go \u2014 Every Hole<\/div><div class=\"dsc\">All tapped threads inspected with calibrated go\/no-go gauges \u2014 100% per hole, not sampled. Zinc is soft \u2014 die-cast threads (tapped in die casting) can have incomplete form due to die wear; CNC-tapped threads are consistently formed. Helicoil inserts installed where repeated assembly cycles are specified: M4+ with &gt;20 cycles, all M2\/M3 with high torque requirement.<\/div><div class=\"specs\"><span class=\"sp\">100% go\/no-go<\/span><span class=\"sp\">Helicoil option<\/span><\/div><\/div>\n      <div class=\"cc\" data-n=\"03\"><div class=\"ico\">\ud83d\udd32<\/div><div class=\"ttl\">Parting Line Trimming \u2014 Flush and Flat<\/div><div class=\"dsc\">Die-casting parting line flash is an unavoidable consequence of the process \u2014 material flows into the parting plane and solidifies as a thin fin. CNC milling of parting line surfaces produces a flat, flush surface within \u00b10.05mm \u2014 required for housing halves that must seal together, connector apertures that must be coplanar, and mating faces that must be flat for gasket sealing. Not deburring or grinding \u2014 precision milling to tolerance.<\/div><div class=\"specs\"><span class=\"sp\">\u00b10.05mm trimmed<\/span><span class=\"sp\">Not just deburred<\/span><\/div><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- TOLERANCE -->\n<section class=\"zna-tol\" role=\"region\" data-bg=\"lt\">\n  <div class=\"zna-wrap\">\n    <div class=\"zna-eyebrow\">Precision Specifications<\/div>\n    <h2 class=\"zna-h2\">Post-Machined Tolerances vs <span class=\"hz\">As-Cast Die-Cast Accuracy<\/span><\/h2>\n    <div class=\"cols\">\n      <div class=\"zna-dp\">\n        <div class=\"dh\"><div class=\"dico\">\ud83d\udcd0<\/div><div class=\"dttl\">Post-Machined Tolerances<\/div><\/div>\n        <div id=\"znaTolRows\">\n          <div class=\"zna-tr\"><div class=\"tl\">Bore (post-machined)<\/div><div class=\"bw\"><div class=\"fill\" style=\"width:0;\" data-w=\"92%\"><\/div><\/div><div class=\"vl\">H8<\/div><\/div>\n          <div class=\"zna-tr\"><div class=\"tl\">Hole Position<\/div><div class=\"bw\"><div class=\"fill\" style=\"width:0;\" data-w=\"80%\"><\/div><\/div><div class=\"vl\">\u00b10.05 mm<\/div><\/div>\n          <div class=\"zna-tr\"><div class=\"tl\">Mating Face Flat<\/div><div class=\"bw\"><div class=\"fill\" style=\"width:0;\" data-w=\"80%\"><\/div><\/div><div class=\"vl\">\u00b10.05 mm<\/div><\/div>\n          <div class=\"zna-tr\"><div class=\"tl\">Surface (milled face)<\/div><div class=\"bw\"><div class=\"fill\" style=\"width:0;\" data-w=\"78%\"><\/div><\/div><div class=\"vl\">Ra \u22641.6 \u03bcm<\/div><\/div>\n          <div class=\"zna-tr\"><div class=\"tl\">Thread (tapped)<\/div><div class=\"bw\"><div class=\"fill\" style=\"width:0;\" data-w=\"90%\"><\/div><\/div><div class=\"vl\">6H (100% G\/NG)<\/div><\/div>\n          <div class=\"zna-tr\"><div class=\"tl\">Aperture (milled)<\/div><div class=\"bw\"><div class=\"fill\" style=\"width:0;\" data-w=\"80%\"><\/div><\/div><div class=\"vl\">\u00b10.05 mm<\/div><\/div>\n        <\/div>\n      <\/div>\n      <div class=\"zna-dp\">\n        <div class=\"dh\"><div class=\"dico\">\u2699<\/div><div class=\"dttl\">Zamak Grade Reference<\/div><\/div>\n        <div class=\"zna-sg\">\n          <div class=\"sc\"><div class=\"lbl\">Zamak 3 UTS<\/div><div class=\"val\">283<sup>MPa<\/sup><\/div><div class=\"note\">Most widely used. Best castability. Dimensional stability. Standard for electronics and general die casting.<\/div><\/div>\n          <div class=\"sc\"><div class=\"lbl\">Zamak 5 UTS<\/div><div class=\"val\">328<sup>MPa<\/sup><\/div><div class=\"note\">Higher hardness and strength (1% Cu addition). Better thread strip resistance for M4+ structural threads.<\/div><\/div>\n          <div class=\"sc\"><div class=\"lbl\">Machinability<\/div><div class=\"val\" style=\"font-size:16px;\">Near brass<\/div><div class=\"note\">High cutting speed, excellent surface finish, minimal tool wear. Economical post-machining vs steel.<\/div><\/div>\n          <div class=\"sc\"><div class=\"lbl\">EMI Shielding<\/div><div class=\"val\" style=\"font-size:16px;\">Inherent<\/div><div class=\"note\">Electrical conductivity comparable to aluminium. Conductive chromate maintains EMI at housing interfaces.<\/div><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- SURFACE TREATMENTS -->\n<section class=\"zna-srf\" role=\"region\" data-bg=\"wh\">\n  <div class=\"zna-wrap\">\n    <div class=\"zna-eyebrow\">Surface Treatments<\/div>\n    <h2 class=\"zna-h2\">Post-Machining Surface Treatment for <span class=\"hz\">Zinc Parts<\/span><\/h2>\n    <p style=\"font-size:14px;color:var(--tx1);max-width:600px;line-height:1.75;margin-top:10px;\">Post-machined zinc surfaces expose bare zinc \u2014 a second treatment cycle or treatment-after-machining is essential to restore corrosion protection on machined areas.<\/p>\n    <div class=\"scroll\">\n      <div class=\"srow\">\n        <div class=\"zna-sc\"><div class=\"sico\">\ud83d\udee1<\/div><div class=\"snm\">Chromate (Clear \/ Yellow)<\/div><div class=\"sdc\">Standard for electronics housings \u2014 conductive, corrosion protection, zero dimensional change. Applied to entire part after all post-machining. Second chromate cycle covers freshly machined surfaces. Conductive chromate maintains EMI continuity at mating interfaces.<\/div><div class=\"sap\"><span class=\"zna-chip\" data-c=\"q1\">Electronics EMI<\/span><\/div><\/div>\n        <div class=\"zna-sc\"><div class=\"sico\">\ud83d\udd18<\/div><div class=\"snm\">Electroless Nickel (3\u20138\u03bcm)<\/div><div class=\"sdc\">Hard, corrosion resistant, decorative. For home appliance hardware requiring silver metallic appearance. Better wear resistance than chromate. Uniform thickness \u2014 suitable for parts with complex post-machined geometry. Applied after all machining and deburring.<\/div><div class=\"sap\"><span class=\"zna-chip\" data-c=\"q2\">Appliance hardware<\/span><\/div><\/div>\n        <div class=\"zna-sc\"><div class=\"sico\">\ud83c\udfa8<\/div><div class=\"snm\">Powder Coat \/ Spray Paint<\/div><div class=\"sdc\">Over chromate base \u2014 for consumer product housings requiring specific colour and texture. Chromate provides adhesion base and corrosion barrier; paint adds appearance. Paint thickness (50\u2013150\u03bcm) must be allowed for at DFM stage on precision mating faces.<\/div><div class=\"sap\"><span class=\"zna-chip\" data-c=\"q2\">Consumer products<\/span><\/div><\/div>\n        <div class=\"zna-sc\"><div class=\"sico\">\u2728<\/div><div class=\"snm\">Electroplating (Ni\/Cu\/Cr)<\/div><div class=\"sdc\">Decorative bright nickel or copper-nickel-chrome stack for premium appearance hardware. Applied over copper strike on zinc substrate. Used for premium appliance fittings and decorative hardware requiring bright metallic appearance. Plating thickness specified \u2014 post-machine tolerance must allow for plating build-up.<\/div><div class=\"sap\"><span class=\"zna-chip\" data-c=\"q2\">Premium decorative<\/span><\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- WHY US -->\n<section class=\"zna-why\" role=\"region\" data-bg=\"lt\">\n  <div class=\"zna-wrap\">\n    <div class=\"zna-eyebrow\">Our Advantage<\/div>\n    <h2 class=\"zna-h2\">Why Assemblers Choose Our <span class=\"hz\">Post-Machined Zinc Parts<\/span><\/h2>\n    <div class=\"wg\">\n      <div class=\"wc\"><div class=\"big\">G\/N<\/div><div class=\"ttl\">100% Thread Go\/No-Go \u2014 Not Sampled<\/div><div class=\"dsc\">Every tapped thread in every zinc part inspected with calibrated go\/no-go gauges. Zinc is soft \u2014 a worn tap or incorrect speed produces out-of-tolerance threads that feel correct by hand but fail go\/no-go. Assembly line thread failures are far more expensive than 100% inspection at the point of manufacture.<\/div><\/div>\n      <div class=\"wc\"><div class=\"big\">\u00b10.05<\/div><div class=\"ttl\">Post-Machine \u00b10.05mm \u2014 Not \u00b10.20mm<\/div><div class=\"dsc\">Post-machining achieves \u00b10.05mm on critical features \u2014 not the \u00b10.10\u20130.20mm typical of as-cast zinc. We document the post-machined tolerances achieved, not the as-cast tolerance assumed. First article CMM report on all post-machined features available on request.<\/div><\/div>\n      <div class=\"wc\"><div class=\"big\">PL<\/div><div class=\"ttl\">Parting Line Milled \u2014 Not Just Deburred<\/div><div class=\"dsc\">Parting line trimming is CNC precision milling to \u00b10.05mm flatness \u2014 not manual deburring or grinding that produces inconsistent results. Consistent parting line finish ensures repeatable housing mating, consistent gasket compression, and repeatable connector aperture geometry across the entire production batch.<\/div><\/div>\n      <div class=\"wc\"><div class=\"big\">Cr<\/div><div class=\"ttl\">Re-Chromate After Machining<\/div><div class=\"dsc\">Post-machined zinc surfaces expose bare zinc that must be re-treated. We apply a second chromate cycle after all post-machining \u2014 covering both the original cast surfaces and the freshly machined surfaces in a single consistent treatment. Bare zinc on machined surfaces that are not re-treated will develop white rust within days.<\/div><\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- FAQ -->\n<section class=\"zna-faq\" role=\"region\" data-bg=\"wh\" id=\"zna-faq\">\n  <div class=\"zna-wrap\">\n    <div class=\"zna-eyebrow\">Frequently Asked Questions<\/div>\n    <h2 class=\"zna-h2\">Zinc Alloy Post-Machining \u2014 <span class=\"hz\">Common Questions<\/span><\/h2>\n    <div class=\"fg\">\n      <div class=\"zna-fi\" aria-expanded=\"false\"><button class=\"fq\" onclick=\"znaFaq(this)\"><span class=\"fqico\">Q<\/span><span class=\"fqtxt\">What zinc alloy grades do you post-machine?<\/span><span class=\"farr\">\u25bc<\/span><\/button><div class=\"fans\"><div class=\"inner\"><strong>Zamak 3<\/strong> (Z33520, Zn-4Al-0.04Mg): most widely used, best castability, 283 MPa UTS, best dimensional stability. Standard for electronics and general die-cast housings. <strong>Zamak 5<\/strong> (Z35531, Zn-4Al-1Cu-0.04Mg): 328 MPa, slightly harder, better thread strip resistance. Preferred for parts with structural threads and mounting hardware. Both machine extremely easily \u2014 near brass machinability.<\/div><\/div><\/div>\n      <div class=\"zna-fi\" aria-expanded=\"false\"><button class=\"fq\" onclick=\"znaFaq(this)\"><span class=\"fqico\">Q<\/span><span class=\"fqtxt\">What accuracy can die casting achieve and why is post-machining needed?<\/span><span class=\"farr\">\u25bc<\/span><\/button><div class=\"fans\"><div class=\"inner\">As-cast accuracy: basic external dimensions \u00b10.10\u20130.20mm; parting line features \u00b10.15\u20130.30mm; bore\/holes \u00b10.10\u20130.20mm; threads cast-in: variable quality. Post-machining achieves: bore <strong>H8 (\u00b10.013\u20130.027mm)<\/strong>; hole position <strong>\u00b10.05mm<\/strong>; mating face <strong>\u00b10.05mm flatness<\/strong>; threads <strong>100% go\/no-go<\/strong>. Post-machining is the economical method \u2014 die casting forms the complex shape; post-machining corrects the precision features only.<\/div><\/div><\/div>\n      <div class=\"zna-fi\" aria-expanded=\"false\"><button class=\"fq\" onclick=\"znaFaq(this)\"><span class=\"fqico\">Q<\/span><span class=\"fqtxt\">Can you tap threads in zinc and what sizes are practical?<\/span><span class=\"farr\">\u25bc<\/span><\/button><div class=\"fans\"><div class=\"inner\">Yes \u2014 zinc taps cleanly. Practical range: <strong>M2 minimum<\/strong> (M1.6 possible but higher breakage rate); M2\u2013M8 most economical; M12 maximum for standard boss dimensions. For repeated assembly: <strong>Helicoil inserts for M4+ with &gt;20 cycles<\/strong>; strongly recommended for M2\/M3 with high torque. <strong>100% go\/no-go on every hole<\/strong> \u2014 not sampled. Zinc thread strips progressively without inserts if over-torqued in assembly.<\/div><\/div><\/div>\n      <div class=\"zna-fi\" aria-expanded=\"false\"><button class=\"fq\" onclick=\"znaFaq(this)\"><span class=\"fqico\">Q<\/span><span class=\"fqtxt\">What surface treatments are available after post-machining?<\/span><span class=\"farr\">\u25bc<\/span><\/button><div class=\"fans\"><div class=\"inner\">Post-machined zinc must be re-treated \u2014 bare machined surfaces expose unprotected zinc that oxidises rapidly. <strong>Chromate<\/strong>: conductive, standard for electronics housings. <strong>Electroless nickel (3\u20138\u03bcm)<\/strong>: hard, decorative, appliance hardware. <strong>Powder coat over chromate<\/strong>: consumer product colour. <strong>Ni\/Cu\/Cr electroplate<\/strong>: premium decorative. We apply a <strong>second chromate cycle after all post-machining<\/strong> \u2014 covering both cast and machined surfaces.<\/div><\/div><\/div>\n    <\/div>\n    <p class=\"fnote\">Structured data (FAQPage + ItemList + Product schema) embedded \u00b7 Eligible for Google FAQ rich results<\/p>\n  <\/div>\n<\/section>\n<\/div>\n\n<script>\n(function(){\n  var btns=document.querySelectorAll('.ZNA .zna-nav .nb');\n  var panes=document.querySelectorAll('.ZNA .zna-pane');\n  btns.forEach(function(btn){btn.addEventListener('click',function(){\n    btns.forEach(function(b){b.setAttribute('aria-selected','false');});\n    panes.forEach(function(p){p.setAttribute('aria-hidden','true');});\n    btn.setAttribute('aria-selected','true');\n    var t=document.getElementById(btn.getAttribute('data-target'));\n    if(t)t.setAttribute('aria-hidden','false');\n  });});\n  var done=false;var bars=document.querySelectorAll('.ZNA .zna-tr .fill');\n  function anim(){if(done)return;var 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Quote.<\/em>\n  <\/h2>\n\n  <p class=\"sub\">Every enquiry includes a DFM review \u2014 tolerance feasibility, material confirmation, and process approach confirmed before production starts. MOQ 1 piece.<\/p>\n\n  <!-- Stats row -->\n  <div class=\"stats\">\n    <div class=\"stat\">\n      <div class=\"sv\">24<small>hr<\/small><\/div>\n      <div class=\"sl\">Quote Response<\/div>\n    <\/div>\n    <div class=\"stat\">\n      <div class=\"sv\">MOQ <small>1<\/small><\/div>\n      <div class=\"sl\">Prototypes OK<\/div>\n    <\/div>\n    <div class=\"stat\">\n      <div class=\"sv\">ISO<\/div>\n      <div class=\"sl\">9001:2015<\/div>\n    <\/div>\n  <\/div>\n\n  <!-- Advantage list -->\n  <div class=\"avlist\">\n    <div class=\"avitem\">\n      <div class=\"ico\">&#128208;<\/div>\n      <div>\n        <div class=\"at\">DFM Review on Every Enquiry<\/div>\n        <div class=\"ad\">Tolerance feasibility, fixturing strategy, and material confirmation. Specific, actionable feedback \u2014 not generic pushback.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#127919;<\/div>\n      <div>\n        <div class=\"at\">First Article Inspection \u2014 Standard<\/div>\n        <div class=\"ad\">FAI report on every new run. Material certs and surface treatment certs included with every shipment.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#128260;<\/div>\n      <div>\n        <div class=\"at\">Same Process: Prototype to Production<\/div>\n        <div class=\"ad\">Process plan from your prototype applies to production batches. No re-qualification when you scale.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#9881;<\/div>\n      <div>\n        <div class=\"at\">3 \/ 4 \/ 5-Axis CNC + Turning<\/div>\n        <div class=\"ad\">Complex structural parts, shafts, housings, and transmission components. Metals and engineering plastics.<\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- Cert tags -->\n  <div class=\"certs\">\n    <span class=\"cert hi\">ISO 9001:2015<\/span>\n    <span class=\"cert\">3\/4\/5-Axis Milling<\/span>\n    <span class=\"cert\">CNC Turning<\/span>\n    <span class=\"cert\">CMM Inspection<\/span>\n    <span class=\"cert\">Global Delivery<\/span>\n  <\/div>\n\n<\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5563c704 e-con-full e-flex e-con e-child\" data-id=\"5563c704\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43b7da31 elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"43b7da31\" data-element_type=\"widget\" data-e-type=\"widget\" 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class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-field_12786b6 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_12786b6\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tCompany\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[field_12786b6]\" id=\"form-field-field_12786b6\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Company Name\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-select elementor-field-group elementor-column elementor-field-group-field_0c79fc0 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_0c79fc0\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMaterial\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field elementor-select-wrapper remove-before \">\n\t\t\t<div class=\"select-caret-down-wrapper\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-caret-down\" viewBox=\"0 0 571.4 571.4\" 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viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256C504 119 393 8 256 8S8 119 8 256s111 248 248 248 248-111 248-248zm-448 0c0-110.5 89.5-200 200-200s200 89.5 200 200-89.5 200-200 200S56 366.5 56 256zm72 20v-40c0-6.6 5.4-12 12-12h116v-67c0-10.7 12.9-16 20.5-8.5l99 99c4.7 4.7 4.7 12.3 0 17l-99 99c-7.6 7.6-20.5 2.2-20.5-8.5v-67H140c-6.6 0-12-5.4-12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Submit Enquiry<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Home\/Products\/Zinc Alloy Die-Cast Post-Machined Parts Product CategoryZNA \u2014 7 Product Lines Zinc AlloyDie-CastPost-Machined 7 product lines of CNC precision post-machining on Zamak 3 and Zamak 5 zinc alloy die castings \u2014 bringing critical dimensions to \u00b10.05mm, holes to H8, threads to 100% go\/no-go, and assembly mating faces to Ra \u22641.6\u03bcm. Die casting shapes; post-machining achieves [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-494","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Zinc Alloy Die Cast Post-Machined Parts | HXCNC<\/title>\n<meta name=\"description\" content=\"Precision CNC post-machining of zinc alloy die cast parts. 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