{"product_id":"electro-hardware-1329m03f21440-hex-standoff-4-40","title":"Electro Hardware 1329M03F21440 Hex Standoff 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE 1329M03F21440 is a male-female hex circuit board standoff designed to create fixed spacing between PCBs or between a PCB and a mounting surface. 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. The standoff measures 1 inch in overall body length with a 3\/16 inch width across flats and uses a 4-40 thread size. The male thread length is 3\/16 inch and the female thread depth is 1\/4 inch. Electronics assembly technicians, panel builders, and control board fabricators install these fasteners in board-level assembly work where consistent standoff height and secure thread engagement are required.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for use in electronic control panels, industrial enclosures, HVAC control boards, and other applications that call for a compact inch-series hex standoff. The 4-40 thread size is a common machine screw standard used throughout low-voltage control board assemblies and embedded electronics. The hex body shape allows installation and removal with standard open-end or box wrenches and hex drivers, making it practical in both initial assembly and field service scenarios where board replacement or adjustment is needed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMale-female hex configuration provides one threaded stud end and one threaded socket end for stacking or mounting PCBs\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\u003e4-40 thread size with 3\/16 inch male thread length and 1\/4 inch female thread depth\u003c\/li\u003e\n  \u003cli\u003e1 inch overall body length with length tolerance of -0.005 to 0.005 inches for precise board spacing\u003c\/li\u003e\n  \u003cli\u003e3\/16 inch hex width across flats fits standard nut drivers and wrenches used in panel assembly\u003c\/li\u003e\n  \u003cli\u003eMinimum order quantity of 10 units supports small-batch assembly and field stocking needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or assembly component for applications using 4-40 inch-series machine screw threads in hex standoff configurations on circuit boards and electronic control panels.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eAlways de-energize and lock out the control panel or circuit board assembly before installing or removing standoffs to prevent damage to board traces or electronic components. Use a correctly sized hex driver or open-end wrench on the 3\/16 inch flats to avoid deforming the hex body. Do not overtighten — brass is a softer material and threads can strip if torque is excessive. Panel builders and electronics assembly technicians should follow applicable industry workmanship standards when mounting PCBs with standoffs.\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: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMale Thread Length\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFemale Thread Depth\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 3\/16 inch (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Hex\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\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: 0.17 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: 1329M03F21440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51730299683122,"sku":"1329M03F21440","price":21.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2a834918bbec30819d0373abd602a42a.jpg?v=1788714927","url":"https:\/\/voomisupply.com\/products\/electro-hardware-1329m03f21440-hex-standoff-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}