{"product_id":"electro-hardware-mmf1339m09f16m3-hex-standoff-m3","title":"Electro Hardware MMF1339M09F16M3 Hex Standoff M3","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE MMF1339M09F16M3 is a male-female hex circuit board standoff designed for securing PCBs and mounting hardware in electronic assemblies. Machined from grade 303 stainless steel with a bright, uncoated finish, this standoff meets the QQ-S-763 federal specification for stainless steel fasteners. The M3 x 0.5 thread size runs on both the male and female ends, with an overall length of 28.76 mm (approximately 1.13 inches) and a hex body width across flats of 4.50 mm (approximately 0.18 inches). It is installed by electronics assembly technicians, field service engineers, and trade professionals working on control boards in HVAC, electrical, and industrial equipment.\u003c\/p\u003e\u003cp\u003eThis standoff is suited for residential and commercial electronics assemblies where PCBs require a fixed, rigid offset from a mounting surface or chassis. The male-female configuration allows standoffs to be stacked or used in multilayer board assemblies. The hex body profile allows installation and tightening with standard hex drivers or wrenches, making it practical for production and field service environments. Its stainless steel construction makes it appropriate for applications where corrosion resistance is a factor.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM3 x 0.5 metric thread on both male and female ends for versatile stacking and mounting\u003c\/li\u003e\n\u003cli\u003eGrade 303 stainless steel construction conforming to QQ-S-763 specification\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for standard and corrosion-resistant applications\u003c\/li\u003e\n\u003cli\u003eHex body profile with 4.50 mm width across flats for wrench or driver installation\u003c\/li\u003e\n\u003cli\u003eBody length of 24.00 mm with a length tolerance of -0.150 to 0.150 mm for precise board spacing\u003c\/li\u003e\n\u003cli\u003eThread depth of 6.40 mm on the female end with a 4.76 mm male thread length\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with M3 x 0.5 threaded fasteners and PCB mounting hardware in metric-standard electronic assemblies and control board applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified electronics or electrical technicians familiar with PCB mounting practices. De-energize all circuits and discharge any capacitors before handling control boards or standoffs in live equipment. Use an appropriately sized hex driver or wrench on the hex body flats to avoid rounding the standoff during tightening. Do not overtighten, as excessive torque can crack PCB substrates or damage threaded inserts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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 and Female\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 28.76 mm (approximately 1.13 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 24.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length (Male)\u003c\/strong\u003e: 4.76 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Depth (Female)\u003c\/strong\u003e: 6.40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 4.50 mm (approximately 0.18 inches)\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: Stainless Steel, Grade 303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: QQ-S-763\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: 0.0084 pounds\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: MMF1339M09F16M3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51741974331698,"sku":"MMF1339M09F16M3","price":75.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aff49ce5c37a3b53487c3e4c2e581db0.jpg?v=1788834667","url":"https:\/\/voomisupply.com\/products\/electro-hardware-mmf1339m09f16m3-hex-standoff-m3","provider":"Voomi Supply","version":"1.0","type":"link"}