{"product_id":"electro-hardware-mp441m03f21m2-5-female-hex-standoff","title":"Electro Hardware MP441M03F21M2.5 Female Hex Standoff","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE MP441M03F21M2.5 is a female hex circuit board standoff designed to create precise 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 provides corrosion resistance and reliable electrical isolation in panel and enclosure builds. The M2.5 x 0.45 metric thread accepts a mating male fastener from above while threading onto a screw or stud from below, making it a standard hardware choice for PCB mounting tasks performed by electricians, electronics technicians, and controls engineers.\u003c\/p\u003e\u003cp\u003eThis standoff is suited for residential and commercial electronic control panel assemblies, industrial enclosures, and circuit board mounting applications where metric hardware is specified. The hex body profile allows installation and removal with a standard hex driver or wrench, making it practical in tight board-level assemblies. Its 21 mm overall length provides controlled standoff height for boards requiring clearance from the mounting substrate.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFemale-female hex body accepts M2.5 x 0.45 metric thread on both ends\u003c\/li\u003e\n\u003cli\u003e21 mm overall length with a length tolerance of -0.13 to 0.13 mm for precise PCB stack height\u003c\/li\u003e\n\u003cli\u003e4.8 mm thread depth provides secure thread engagement for the fastener\u003c\/li\u003e\n\u003cli\u003e4.5 mm width across flats allows installation with standard hex tooling\u003c\/li\u003e\n\u003cli\u003eBrass construction with clear zinc chromate finish meets ASTM B633 Type 1 and QQ-B-626 Comp 22\u003c\/li\u003e\n\u003cli\u003ePartially threaded design with hex body shape for controlled torque and positive seating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard metric M2.5 x 0.45 female hex circuit board standoff for use in PCB mounting assemblies where a 21 mm standoff height and 4.5 mm hex profile are specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by electronics technicians, electricians, or controls assemblers working on PCB mounting tasks. Always de-energize and discharge the board assembly before installing or removing standoffs. Use a properly sized hex driver or wrench matched to the 4.5 mm width across flats to avoid deforming the hex body. Do not overtighten, as brass hardware is subject to thread stripping under excessive torque.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: M2.5 x 0.45\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 21 mm (approximately 0.827 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 4.8 mm (approximately 0.189 inches)\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\u003eBody Shape\u003c\/strong\u003e: Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage\u003c\/strong\u003e: Partially Threaded\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: 0.00688 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161816\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: MP441M03F21M2.5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51743050301746,"sku":"MP441M03F21M2.5","price":75.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9fc684cde045c4d1faff9ecaafacd443_580c96ca-0dea-4cc1-9adb-e90c3c1f3805.jpg?v=1788841962","url":"https:\/\/voomisupply.com\/products\/electro-hardware-mp441m03f21m2-5-female-hex-standoff","provider":"Voomi Supply","version":"1.0","type":"link"}