{"product_id":"electro-hardware-p301m03f21440-hex-standoff-4-40-3-8in","title":"Electro Hardware P301M03F21440 Hex Standoff 4-40 3\/8in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE P301M03F21440 is a female hex circuit board standoff designed for securing PCBs and electronic assemblies in control panels, HVAC control boards, and similar equipment enclosures. This fully threaded standoff features a 4-40 thread size, a 3\/8 inch overall length, and a 3\/16 inch width across flats. Constructed from brass with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, it offers solid corrosion resistance and reliable thread engagement. Licensed electricians, HVAC technicians, and electronics assemblers use this type of hardware when mounting or replacing control boards in residential and light commercial equipment.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for use in circuit board mounting applications where a female-threaded hex spacer is required between the board and a mounting surface or between stacked boards. The hex body shape allows for wrench-tightening to consistent torque without slipping. The fully threaded interior runs the full 3\/8 inch thread depth, providing maximum thread engagement for the 4-40 fastener. Typical applications include HVAC control board mounting, electrical panel PCB assemblies, and general electronics enclosure work where brass hardware is specified for conductivity or compatibility reasons.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale 4-40 internal thread, fully threaded through 3\/8 inch thread depth\u003c\/li\u003e\n  \u003cli\u003eHex body shape with 3\/16 inch width across flats for wrench engagement\u003c\/li\u003e\n  \u003cli\u003eBrass construction with clear zinc chromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eMeets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of -0.005 to +0.005 inches for precise board spacing\u003c\/li\u003e\n  \u003cli\u003eInch measurement system, compatible with standard 4-40 fasteners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or general-use female hex standoff for circuit board mounting applications requiring a 4-40 thread size and 3\/8 inch overall length in brass with zinc plating.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eDe-energize all equipment and discharge any stored capacitance before working on control boards or electronic assemblies. Use the appropriate hex driver or nut driver sized to 3\/16 inch across flats to seat the standoff without stripping the hex body. Do not overtighten — brass threads can strip or crack under excessive torque. Follow applicable NEC guidelines and equipment manufacturer instructions when replacing or installing control board hardware.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Female\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\/8 inches (0.375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 3\/16 inches (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\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Clear Zinc Chromate\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\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\u003ePackage Quantity\u003c\/strong\u003e: 1\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: P301M03F21440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51731416449330,"sku":"P301M03F21440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/69be0ea513ec4cbce20afd5016302ef1_acb09781-2850-4f20-853b-03fbd5875773.jpg?v=1788730778","url":"https:\/\/voomisupply.com\/products\/electro-hardware-p301m03f21440-hex-standoff-4-40-3-8in","provider":"Voomi Supply","version":"1.0","type":"link"}