{"product_id":"electro-hardware-1312m12f21440-hex-standoff-4-40","title":"Electro Hardware 1312M12F21440 Hex Standoff 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE 1312M12F21440 is a male-female hex circuit board standoff designed to create a precise, fixed gap between printed circuit boards or between a board and a mounting surface. It features a 4-40 unified thread on both the male and female ends, a hexagonal body measuring 3\/16 inches across the flats, and an overall body length of 15\/32 inches (0.4688 inches). Constructed from steel with a zinc-plated finish that meets ASTM B633 Type 1 and QQ-S-633 standards, this standoff provides corrosion resistance alongside reliable mechanical rigidity. Electronics assembly technicians and field service technicians install these in control board assemblies, PCB mounting applications, and enclosure builds.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for use in low-voltage control boards, HVAC equipment electronic assemblies, electrical enclosures, and general electronics panel builds where a 4-40 threaded male-female configuration is required. The hex body allows tool engagement for tightening without marring the PCB surface. Its inch-system threading and standard hex profile make it a straightforward drop-in component for both OEM production environments and field repair scenarios where board-to-board or board-to-chassis spacing must be maintained consistently.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 unified thread on both male and female ends for secure board-to-board or board-to-chassis fastening\u003c\/li\u003e\n  \u003cli\u003eHexagonal body at 3\/16 inches across the flats allows wrench or nut driver engagement\u003c\/li\u003e\n  \u003cli\u003eOverall body length of 15\/32 inches (0.4688 inches) with a thread depth of 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc-plated finish per ASTM B633 Type 1 and QQ-S-633 for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of -0.005 to 0.005 inches for consistent spacing in precision PCB assemblies\u003c\/li\u003e\n  \u003cli\u003eInch-system measurement; Material Grade 2 steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard hardware component for circuit board mounting applications requiring a 4-40 male-female hex standoff in inch sizing.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics assembly technicians or qualified electrical trades workers. Always de-energize the equipment and discharge any stored energy before working on control boards or electronic assemblies. Use an appropriately sized nut driver or hex wrench to engage the standoff body; avoid over-tightening, which can crack PCB mounting holes or strip the 4-40 threads. Follow applicable electrical codes and equipment manufacturer service procedures when replacing or installing standoffs in control panel or board assemblies.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\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 Body Length\u003c\/strong\u003e: 0.4688 inches (15\/32 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 3\/16 inch\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\u003eBody Shape\u003c\/strong\u003e: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel, Grade 2\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-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\u003eWeight\u003c\/strong\u003e: 0.14 pounds\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: 1312M12F21440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51733678391602,"sku":"1312M12F21440","price":29.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2ed038b6de2684c05119d308ef78b1d_23379c3d-d8e0-41a6-beb5-c390d3567ca8.jpg?v=1788757989","url":"https:\/\/voomisupply.com\/products\/electro-hardware-1312m12f21440-hex-standoff-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}