{"product_id":"value-collection-r52000307-4-40-x-3-8-in-round-head-screw","title":"Value Collection R52000307 4-40 X 3\/8 in Round Head Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R52000307 is a 4-40 x 3\/8 inch round head slotted machine screw manufactured from brass. Designed for precision fastening in electrical, HVAC, plumbing, and general trade applications, this screw features a slotted drive that accepts a standard flat-blade screwdriver. The 4-40 thread designation indicates a No. 4 screw with 40 threads per inch, suitable for light-duty fastening into tapped holes or with mating nuts. Brass construction provides corrosion resistance and electrical conductivity, making it well suited for panel work, terminal assemblies, and moisture-prone environments. This item meets ASME B18.16.3 dimensional standards and is sold in a minimum quantity of 100 pieces per order.\u003c\/p\u003e\n\u003cp\u003eThis screw is commonly used by electricians, HVAC technicians, and plumbers when securing small components such as terminal blocks, control board standoffs, cover plates, and instrument panels. The 3\/8 inch under-head length suits shallow through-hole and tapped-boss applications in both residential and light commercial equipment. The round head profile provides a low-profile bearing surface without requiring a countersunk hole.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 thread size with 40 threads per inch for fine-pitch fastening\u003c\/li\u003e\n  \u003cli\u003e3\/8 inch length measured under the head per ASME B18.16.3\u003c\/li\u003e\n  \u003cli\u003eRound head profile eliminates need for countersunk or flat-bottom holes\u003c\/li\u003e\n  \u003cli\u003eSlotted drive accepts standard flat-blade screwdrivers\u003c\/li\u003e\n  \u003cli\u003eBrass material offers corrosion resistance and electrical conductivity\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B18.16.3 dimensional standard for inch-series machine screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 inch-series machine screw for use wherever a round head slotted brass fastener of this thread size and length is specified. Consult equipment service documentation to confirm thread size, length, and material requirements before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a flat-blade screwdriver sized to fit the slotted head to avoid cam-out and head damage. De-energize all circuits and follow applicable NEC or equipment-specific lockout procedures before replacing fasteners in electrical enclosures or control panels. Avoid over-torquing brass screws into tapped holes, as brass is softer than steel and susceptible to thread stripping. Verify thread engagement depth is sufficient in the mating component before final tightening.\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 (No. 4, 40 threads per inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Slotted\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWasher Style\u003c\/strong\u003e: Without Washer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME B18.16.3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161504\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: R52000307\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698125766962,"sku":"R52000307","price":969.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d28e9309835fe1593c07728cc4cae47d.jpg?v=1788358101","url":"https:\/\/voomisupply.com\/products\/value-collection-r52000307-4-40-x-3-8-in-round-head-screw","provider":"Voomi Supply","version":"1.0","type":"link"}