{"product_id":"electro-hardware-1325m03f21440-hex-standoff-4-40","title":"Electro Hardware 1325M03F21440 Hex Standoff 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE 1325M03F21440 is a male-female hex circuit board standoff designed to create fixed spacing between stacked PCBs or between a circuit board and a mounting surface. The standoff features a 4-40 thread size with a male thread on one end and a female threaded bore on the other, allowing boards to be fastened and spaced simultaneously. The body is machined from brass and finished with a zinc plating that meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards. Overall body length is 0.875 inches with a hexagonal cross-section measuring 0.1875 inches across the flats. Electronics assembly technicians and board-level repair technicians install these standoffs in production and field-service applications.\u003c\/p\u003e\n\u003cp\u003eThis standoff is used in electronics assembly and circuit board mounting applications across commercial, industrial, and residential control systems. It is well-suited for securing control boards inside HVAC equipment, electrical enclosures, and similar panels where repeatable board-to-surface spacing is required. The hex profile allows tightening with a standard wrench or nut driver. The male thread on one end engages a receiving nut or threaded hole in the mounting surface, while the female threaded bore accepts a screw from the board above. Minimum order quantity is 10 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 male-female thread configuration for stacking and spacing circuit boards\u003c\/li\u003e\n  \u003cli\u003eBrass construction with zinc plating meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards\u003c\/li\u003e\n  \u003cli\u003eHexagonal body profile at 0.1875 inches across flats allows wrench or nut driver installation\u003c\/li\u003e\n  \u003cli\u003eOverall body length of 0.875 inches with a thread depth of 0.25 inches on the female end\u003c\/li\u003e\n  \u003cli\u003eThread length on the male end is 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of -0.005 to 0.005 inches for consistent board-level fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any application requiring a 4-40 male-female hex standoff with a 0.875-inch body length and 0.1875-inch hex width, including PCB mounting in control panels and electronic enclosures.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics assembly technicians or qualified service personnel working on circuit board mounting. Power down and de-energize the equipment fully before handling or replacing any circuit board hardware. Use an appropriately sized nut driver or open-end wrench on the hex body to seat the standoff without over-torquing, which can crack PCB mounting holes. Ensure the mating thread and hole pattern match the 4-40 specification before installation.\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: 0.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth (Female End)\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length (Male End)\u003c\/strong\u003e: 0.1875 inches\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: 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: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.16 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: 1325M03F21440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51735023649074,"sku":"1325M03F21440","price":21.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2ed038b6de2684c05119d308ef78b1d_e0b9d56e-8d9c-4c53-a761-847e114c376c.jpg?v=1788769331","url":"https:\/\/voomisupply.com\/products\/electro-hardware-1325m03f21440-hex-standoff-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}