{"product_id":"value-collection-580631pr-flat-head-machine-screw-1-4-20","title":"Value Collection 580631PR Flat Head Machine Screw 1\/4-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 580631PR is a 1\/4-20 x 1 inch flat head slotted machine screw manufactured from Grade 2 steel with a zinc finish. It features a unified national coarse (UNC) thread form and is measured by overall length at 1 inch. The flat head profile sits flush with or below the surface of the fastened material, making it a common choice in panel assemblies, equipment enclosures, and structural brackets across HVAC, electrical, and general mechanical applications. Installation is performed by any trade technician requiring a secure, flush-mount threaded fastener.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for light-duty to medium-duty fastening applications in residential and commercial settings. The zinc coating provides basic corrosion resistance for indoor and mildly exposed environments. The 1\/4-20 UNC thread is one of the most widely used coarse-thread sizes in trade work, compatible with standard 1\/4-20 tapped holes, nuts, and threaded inserts. It is commonly used in electrical enclosures, HVAC equipment panels, plumbing fixture brackets, and general sheet metal assemblies where a countersunk flush finish is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 UNC coarse thread for broad compatibility with standard tapped holes and hardware\u003c\/li\u003e\n  \u003cli\u003eFlat head design seats flush with the workpiece surface for a clean, low-profile finish\u003c\/li\u003e\n  \u003cli\u003eSlotted drive accepts standard flat-blade screwdrivers for installation and removal\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction provides reliable tensile strength for light-duty to medium-duty fastening\u003c\/li\u003e\n  \u003cli\u003eZinc finish delivers basic corrosion resistance in indoor and sheltered environments\u003c\/li\u003e\n  \u003cli\u003e1 inch overall length suits standard panel thicknesses and bracket assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-20 UNC machine screw for use in any application requiring a flat head slotted fastener with a 1 inch overall length and zinc-finished Grade 2 steel construction.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a flat-blade screwdriver sized to the slot width to avoid cam-out and fastener damage. Ensure the mating hole is properly tapped or fitted with a compatible 1\/4-20 nut or insert before driving the screw. Do not overtighten Grade 2 fasteners in thin sheet metal or soft substrate materials, as the lower tensile rating compared to Grade 5 or Grade 8 hardware makes them susceptible to stripping under excessive torque. Follow applicable mechanical and electrical codes when fastening equipment enclosures or structural components.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Form\u003c\/strong\u003e: UNC (Unified National Coarse)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Flat\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: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc\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\u003eWeight\u003c\/strong\u003e: 0.05 pounds\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: 580631PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51717295898930,"sku":"580631PR","price":1451.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ad706ea4bbd5cd5c0fccbaf78784b905.jpg?v=1788538000","url":"https:\/\/voomisupply.com\/products\/value-collection-580631pr-flat-head-machine-screw-1-4-20","provider":"Voomi Supply","version":"1.0","type":"link"}