{"product_id":"electro-hardware-mp447m03f21m3-hex-standoff-m3-brass","title":"Electro Hardware MP447M03F21M3 Hex Standoff M3 Brass","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE MP447M03F21M3 is a female hex circuit board standoff designed to create precise, rigid spacing between printed circuit boards and mounting surfaces. Machined from brass with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff provides reliable corrosion resistance in electronics assembly environments. The M3 x 0.5 fully threaded female thread runs the full 24 mm body length, allowing a male fastener to engage from either end. The hexagonal body shape allows standard wrench or socket installation without slippage. Electronics assemblers, PCB technicians, and panel builders install these in control panels, industrial enclosures, and commercial electronics assemblies.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for metric fastener applications where M3 x 0.5 threading is specified. The 4.5 mm width across flats accommodates standard metric hex tooling. Typical installations include stacking PCBs in control enclosures, mounting boards to chassis rails, and securing logic boards in HVAC control modules or similar low-voltage electronics assemblies. The brass base material provides good electrical conductivity and machinability, making it a common choice where grounding continuity through the standoff may be required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFully threaded M3 x 0.5 female thread, 24 mm thread depth  -  threads run the full body length\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\u003eHexagonal body, 4.5 mm width across flats for positive wrench engagement\u003c\/li\u003e\n  \u003cli\u003e24 mm overall length with tight length tolerance of -0.13 to 0.13 mm\u003c\/li\u003e\n  \u003cli\u003eUNSPSC Code 31161816 for procurement system compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with M3 x 0.5 metric fasteners in PCB standoff and spacer applications. Suitable for circuit board mounting in control panels, electronics enclosures, and similar assemblies requiring metric threaded brass standoffs.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and remove using a metric hex wrench or socket sized for 4.5 mm across flats. De-energize and discharge any board or enclosure before installing or removing standoffs to avoid electrostatic discharge damage to components. Do not over-torque the standoff body, as brass is softer than steel and threads can be damaged by excessive force. Follow applicable assembly drawings and IPC standards for PCB mounting hardware installation.\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\u003eOverall Length\u003c\/strong\u003e: 24 mm (approximately 0.945 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 24 mm  -  fully threaded\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 (approximately 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: 0.00776 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: MP447M03F21M3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51741433463090,"sku":"MP447M03F21M3","price":76.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9fc684cde045c4d1faff9ecaafacd443_68693f58-86d8-4e3e-9cdf-3f0c08ae1883.jpg?v=1788831504","url":"https:\/\/voomisupply.com\/products\/electro-hardware-mp447m03f21m3-hex-standoff-m3-brass","provider":"Voomi Supply","version":"1.0","type":"link"}