{"product_id":"electro-hardware-1321m03f21256-hex-standoff-2-56","title":"Electro Hardware 1321M03F21256 Hex Standoff 2-56","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE 1321M03F21256 is a male-female hex circuit board standoff designed to create measured spacing between printed circuit boards or between a board and a mounting surface. Manufactured from brass with a zinc-plated finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff provides corrosion resistance and reliable electrical isolation in tight assemblies. The hex body shape allows wrench engagement for secure installation without slippage. With a 2-56 thread size, 0.75 inch overall body length, and 0.1875 inch width across flats, it fits compact PCB stacking applications common in HVAC control boards, electrical enclosures, and instrumentation panels.\u003c\/p\u003e\u003cp\u003eThis standoff is suited for use in residential and light commercial electronic assemblies where precise board-to-board or board-to-chassis spacing is required. Typical applications include mounting control boards inside HVAC units, securing relay panels, and stacking PCBs within electrical enclosures. The male thread on one end engages a mounting hole or female standoff below, while the female thread on the opposite end accepts a screw or the male end of an adjacent standoff. Electronics technicians, HVAC controls specialists, and panel builders routinely use this type of fastener during control board installation or replacement work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBrass construction with zinc-plated finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eMeets ASTM B633 Type 1 and QQ-B-626 Comp 22 fastener standards\u003c\/li\u003e\n\u003cli\u003eHex body shape allows wrench engagement for secure torque-down\u003c\/li\u003e\n\u003cli\u003e2-56 thread size with 5\/32 inch thread length on the male end\u003c\/li\u003e\n\u003cli\u003e3\/16 inch thread depth on the female end\u003c\/li\u003e\n\u003cli\u003e0.75 inch overall body length with tight length tolerance of -0.005 to 0.005 inch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation standoff for circuit board assemblies using 2-56 inch-series threaded fasteners with a 3\/16 inch hex body profile.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by electronics technicians or HVAC controls specialists using a small hex wrench or nut driver sized for the 3\/16 inch flats. Always de-energize and discharge the equipment before handling any circuit board or internal fasteners. Avoid over-tightening, as brass threads can strip if excessive force is applied. Follow applicable NEC guidelines and equipment manufacturer service procedures when replacing or mounting control boards.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Male-Female\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 2-56\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\u003eBody Shape\u003c\/strong\u003e: Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Body Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length (Male)\u003c\/strong\u003e: 5\/32 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Depth (Female)\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.005 to 0.005 inch\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: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 1321M03F21256\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51737805324594,"sku":"1321M03F21256","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/354e84e78593c87d91054c55b2ccfd1d_fd25ab4e-5eb2-4ced-8e0f-57052c533f8a.jpg?v=1788793761","url":"https:\/\/voomisupply.com\/products\/electro-hardware-1321m03f21256-hex-standoff-2-56","provider":"Voomi Supply","version":"1.0","type":"link"}