{"product_id":"electro-hardware-mp443m03f21m3-female-hex-standoff-m3x0-5","title":"Electro Hardware MP443M03F21M3 Female Hex Standoff M3x0.5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE MP443M03F21M3 is a female hex circuit board standoff designed to create precise, secure spacing between PCBs and mounting surfaces in electronic assemblies. Manufactured from brass with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff features a fully threaded M3 x 0.5 female thread running the full 22 mm body length. The hexagonal body measures 4.5 mm across flats, allowing installation and removal with standard hex drivers or wrenches. Electronics assemblers, field service technicians, and panel builders use this hardware in PCB mounting applications where reliable electrical isolation and repeatable board-to-surface spacing are required.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for metric PCB assembly work in commercial electronics, control panels, HVAC equipment boards, and industrial enclosures where M3 threaded fasteners are specified. The fully threaded female bore and consistent 22 mm overall length make it appropriate for stacking or single-level board mounting configurations. The brass base material provides corrosion resistance and good electrical conductivity, while the zinc plating adds a secondary layer of protection in moderate-duty environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM3 x 0.5 fully threaded female bore with 22 mm thread depth for full-length engagement\u003c\/li\u003e\n  \u003cli\u003eHexagonal body, 4.5 mm width across flats, compatible with standard metric hex tooling\u003c\/li\u003e\n  \u003cli\u003eBrass construction with clear zinc chromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eMeets ASTM B633 Type 1 and QQ-B-626 Comp 22 finish standards\u003c\/li\u003e\n  \u003cli\u003eTight length tolerance of -0.13 to 0.13 mm for consistent board-to-surface spacing\u003c\/li\u003e\n  \u003cli\u003eUNSPSC Code 31161816 for procurement system classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation standoff for metric PCB assemblies specifying M3 x 0.5 female threaded hex standoffs with a 22 mm overall length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics technicians or panel assemblers using a standard metric hex driver or open-end wrench sized to 4.5 mm across flats. De-energize all boards and assemblies before installing or removing standoffs to prevent electrostatic discharge damage or short circuits. Do not overtighten brass standoffs against PCB mounting holes, as brass threads can be damaged by excessive torque. Follow applicable IPC assembly standards for PCB hardware installation where required by the job specification.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Female\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M3 x 0.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 22 mm (0.866 inches), fully threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 22 mm (0.866 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 4.5 mm (0.177 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.13 to 0.13 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Clear Zinc Chromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASTM B633 Type 1, QQ-B-626 Comp 22\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.00712 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161816\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ELECTRO HARDWARE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MP443M03F21M3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51741781885234,"sku":"MP443M03F21M3","price":77.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9fc684cde045c4d1faff9ecaafacd443_e485f3a9-3139-431c-97c1-f02aa722346d.jpg?v=1788833453","url":"https:\/\/voomisupply.com\/products\/electro-hardware-mp443m03f21m3-female-hex-standoff-m3x0-5","provider":"Voomi Supply","version":"1.0","type":"link"}