{"product_id":"electro-hardware-mmf1853m03f21m3-hex-standoff-m3x0-5","title":"Electro Hardware MMF1853M03F21M3 Hex Standoff M3x0.5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE MMF1853M03F21M3 is a male-female hex circuit board standoff designed to create precise, repeatable spacing between stacked PCBs or between a board and a mounting surface. One end threads into an existing female hole or standoff; the other end presents a male thread that accepts the next board or component. The hex body allows wrench engagement for secure, torque-controlled installation. It is machined from brass with a zinc-plated finish that meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards. Overall length is 35.76 mm (approximately 1.41 inches), body length is 31.00 mm, thread size is M3 x 0.5, and width across the hex flats is 6.00 mm.\u003c\/p\u003e\n\u003cp\u003eThis standoff is used in electronics assembly, control board mounting, and enclosure builds where a rigid, electrically isolated or mechanically secure board stack is required. Typical applications include industrial control panels, HVAC circuit board assemblies, power supply enclosures, and general PCB chassis mounting. It is installed by electronics assemblers, panel builders, and field technicians performing control board service or replacement. The metric M3 x 0.5 thread makes it compatible with metric-threaded PCB mounting holes and hardware commonly found in European-standard and metric-based control assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMale-female configuration allows daisy-chaining of multiple board layers in a single standoff stack\u003c\/li\u003e\n  \u003cli\u003eHex body shape (6.00 mm across flats) accepts standard nut drivers and wrenches for positive torque control\u003c\/li\u003e\n  \u003cli\u003eBrass construction with zinc-plated finish provides corrosion resistance per ASTM B633 Type 1 and QQ-B-626 Comp 22\u003c\/li\u003e\n  \u003cli\u003eM3 x 0.5 thread on both ends with a thread length of 4.76 mm and thread depth of 6.40 mm\u003c\/li\u003e\n  \u003cli\u003eOverall length of 35.76 mm with a tight length tolerance of -0.150 to 0.150 mm for consistent board spacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style metric standoff for PCB and control board assemblies using M3 x 0.5 threaded mounting holes.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics assemblers or licensed electricians working on control panel builds. Power down and de-energize the assembly before installing or removing standoffs in any live panel or control board application. Use a properly sized nut driver or hex wrench matched to the 6.00 mm flat width to avoid rounding the hex body. Do not over-torque; brass hardware is subject to thread stripping if excessive force is applied.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M3 x 0.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Male \/ Female\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 35.76 mm (approximately 1.41 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 31.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 4.76 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 6.40 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 6.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.150 to 0.150 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Hex\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: Zinc-Plated\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\u003ePackage Weight\u003c\/strong\u003e: 1.93 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 2\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: MMF1853M03F21M3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51732753154354,"sku":"MMF1853M03F21M3","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/12c6610c084eb0026bf82c27a45450ea.jpg?v=1788746323","url":"https:\/\/voomisupply.com\/products\/electro-hardware-mmf1853m03f21m3-hex-standoff-m3x0-5","provider":"Voomi Supply","version":"1.0","type":"link"}