{"product_id":"electro-hardware-p333m03f21440-hex-standoff-4-40-7-8in","title":"Electro Hardware P333M03F21440 Hex Standoff 4-40 7\/8in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE P333M03F21440 is a female hex circuit board standoff designed to provide fixed spacing and electrical isolation between PCBs and mounting surfaces. Manufactured from brass with a clear zinc chromate (zinc-plated) finish that meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff features a 4-40 female thread, a 7\/8 inch overall length, and a 3\/16 inch width across flats. The hex body allows for secure wrench-driven installation. It is fully threaded with a 7\/8 inch thread depth, accepting a mating screw for the full length of the bore. Electronics technicians, panel builders, and field service personnel working on control boards in HVAC, electrical, and industrial applications commonly install this hardware.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for circuit board mounting applications where a fixed, threaded female receptacle is required to stack or secure PCBs inside control enclosures, electrical panels, or equipment chassis. Its inch-system 4-40 thread size is standard across a wide range of control boards found in residential and light commercial HVAC equipment, industrial controls, and electronic assemblies. The brass base material and zinc plating provide corrosion resistance appropriate for indoor panel and board-mounting environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale 4-40 threaded hex standoff with fully threaded 7\/8 inch thread depth\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 fastener standards\u003c\/li\u003e\n  \u003cli\u003eHex body shape enables wrench or driver installation for consistent torque\u003c\/li\u003e\n  \u003cli\u003e3\/16 inch width across flats fits standard hex tooling\u003c\/li\u003e\n  \u003cli\u003eInch-system measurement — compatible with standard 4-40 machine screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service standoff for circuit board mounting applications using 4-40 inch-series threaded hardware in residential and commercial control enclosures.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics technicians or qualified service personnel. De-energize and lock out all power to the control board or panel before removing or installing standoffs. Use a properly sized hex driver or wrench matched to the 3\/16 inch width across flats to avoid rounding the hex body. Do not over-drive; secure snugly to prevent board movement without distorting the brass body or cracking the PCB mounting hole.\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: 7\/8 inches (0.875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 7\/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 (Zinc-Plated)\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  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: P333M03F21440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51744926466354,"sku":"P333M03F21440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/69be0ea513ec4cbce20afd5016302ef1_58f5a98e-ddbf-4ee6-8db9-d61b41e13ff4.jpg?v=1788862314","url":"https:\/\/voomisupply.com\/products\/electro-hardware-p333m03f21440-hex-standoff-4-40-7-8in","provider":"Voomi Supply","version":"1.0","type":"link"}