{"product_id":"electro-hardware-mm1405m12-msc-hex-standoff-4-40-3-16in-steel","title":"Electro Hardware MM1405M12-MSC Hex Standoff 4-40 3\/16in Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE MM1405M12-MSC is a male-male hex circuit board standoff designed to space and mount printed circuit boards within electronic enclosures and control assemblies. Threaded 4-40 on both ends, this standoff allows boards to stack or mount to a panel with secure, symmetrical fastening. The hex body profile simplifies installation and removal with standard tooling. Constructed from Grade 2 steel with a zinc-plated finish meeting QQ-S-633, it provides corrosion resistance in typical indoor environments. The overall length is 3\/16 inches with a 1\/4-inch width across flats, making it suited for compact, low-profile board mounting applications.\u003c\/p\u003e\n\u003cp\u003eThis standoff is used in residential and light commercial control panel assemblies, HVAC equipment boards, electrical enclosures, and general electronics manufacturing where PCB-to-panel or board-to-board spacing is required. The 4-40 thread size is a common standard in circuit board fastening, fitting a wide range of control board mounting applications encountered by HVAC technicians, electricians, and electronics assembly professionals. Its small form factor suits tight enclosures where minimal clearance is available between boards or between a board and a mounting surface.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMale-male threaded ends with 4-40 thread size for secure dual-side fastening\u003c\/li\u003e\n  \u003cli\u003eHex body shape allows wrench or nut driver engagement for installation and removal\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction with zinc-plated finish meeting QQ-S-633 standard\u003c\/li\u003e\n  \u003cli\u003eCompact 3\/16-inch overall length for low-profile PCB mounting\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch width across flats compatible with standard hex tooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation fastener for circuit board assemblies using 4-40 threaded standoffs in standard inch-measurement mounting configurations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electricians, HVAC technicians, or electronics assembly professionals working on control boards or panel assemblies. Power down all equipment and discharge any stored electrical energy before handling circuit boards or fasteners. Use a hex nut driver or appropriately sized wrench sized for 1\/4-inch flats to seat the standoff without overtightening, which can strip the 4-40 threads or crack a PCB. Follow applicable NEC guidelines and equipment manufacturer instructions when working inside electrical enclosures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Male-Male\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 1\/4 inches (0.2500 inches)\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: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: QQ-S-633\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 pounds\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: MM1405M12-MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51733129691442,"sku":"MM1405M12-MSC","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/84357611908f27e2258afcb9d4da0d3c_9b8837dd-7043-4fcb-a75b-4795a645405b.jpg?v=1788751628","url":"https:\/\/voomisupply.com\/products\/electro-hardware-mm1405m12-msc-hex-standoff-4-40-3-16in-steel","provider":"Voomi Supply","version":"1.0","type":"link"}