{"product_id":"electro-hardware-mmf1829m03f21m4-m4-hex-standoff","title":"Electro Hardware MMF1829M03F21M4 M4 Hex Standoff","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE MMF1829M03F21M4 is a male-female hex circuit board standoff designed to create precise spacing and secure mounting between PCB layers, enclosures, and panel surfaces. Machined from brass with a zinc-plated finish that meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff provides reliable electrical isolation and mechanical support in control board assemblies, industrial electronics, and HVAC equipment panels. The M4 x 0.7 thread on both the male and female ends accommodates standard metric fasteners, and the hex body shape allows wrench engagement for controlled installation torque without slipping.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for residential and light commercial electronic assemblies where metric hardware is specified. Common install scenarios include control board stacking in HVAC systems, DIN-rail enclosure builds, and panel-mount PCB applications. The 6 mm width across flats fits standard metric hex drivers and nut drivers. Electricians, electronics technicians, and HVAC controls specialists working with metric-threaded board assemblies will find this standoff a direct fit for typical M4 mounting configurations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMale-female hex configuration allows stacking and through-panel PCB mounting with a single fastener engagement on each end\u003c\/li\u003e\n  \u003cli\u003eBrass construction with zinc-plated finish meets ASTM B633 Type 1 and QQ-B-626 Comp 22 corrosion-resistance standards\u003c\/li\u003e\n  \u003cli\u003eM4 x 0.7 metric thread on both ends accepts standard M4 machine screws\u003c\/li\u003e\n  \u003cli\u003e6 mm width across flats permits wrench or nut driver installation for secure, consistent seating\u003c\/li\u003e\n  \u003cli\u003e28.53 mm overall length with 19 mm hex body and 9.53 mm male thread length provides defined board-to-surface standoff distance\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of -0.150 to 0.150 mm supports precision assemblies with tight stacking requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style metric standoff for circuit board assemblies requiring M4 x 0.7 threading and a 6 mm hex body profile.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified electronics technician or licensed electrician. Always power down and de-energize the equipment fully before working on any control board or enclosure assembly. Use a calibrated metric nut driver or torque wrench sized for 6 mm hex fasteners to avoid stripping the hex body or over-stressing the brass threads. Do not cross-thread the male end during engagement into a receiving nut or threaded insert.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M4 x 0.7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Male and Female\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 28.53 mm (approximately 1.124 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 19.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMale Thread Length\u003c\/strong\u003e: 9.53 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth (Female)\u003c\/strong\u003e: 11.10 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 6 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\u003eWeight\u003c\/strong\u003e: 1.56 pounds (package)\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: MMF1829M03F21M4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51731281477938,"sku":"MMF1829M03F21M4","price":34.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b7be0c19661ae9294c0fdba3369c41cd_4e112cc9-8296-41c0-a1dd-dff7465219ee.jpg?v=1788729226","url":"https:\/\/voomisupply.com\/products\/electro-hardware-mmf1829m03f21m4-m4-hex-standoff","provider":"Voomi Supply","version":"1.0","type":"link"}