{"product_id":"value-collection-581396pr-hex-socket-cap-screw-1-4-28-unf","title":"Value Collection 581396PR Hex Socket Cap Screw 1\/4-28 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581396PR is a hex socket cap screw designed for precision fastening in applications requiring a flush or recessed head profile. This fully threaded fastener measures 9\/16 inches in length under the head with a 1\/4-28 UNF thread and accepts a 3\/16-inch hex drive. Manufactured from alloy steel and finished with a black oxide coating, it delivers improved corrosion resistance and a consistent surface finish suitable for industrial and mechanical assemblies. It is installed by machinists, maintenance technicians, and mechanical contractors working with close-tolerance hardware.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for light to medium-duty mechanical assemblies in both commercial and industrial settings. The fine 1\/4-28 UNF thread pitch provides strong clamping force and resistance to loosening under vibration, making it a common choice for machine components, fixtures, tooling, and equipment panels. Full threading along the shank length allows engagement across the entire fastened joint. This item is sold individually but requires a minimum order quantity of 100 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for high clamping force and vibration resistance\u003c\/li\u003e\n  \u003cli\u003eFully threaded shank for maximum thread engagement\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch internal hex drive for standard Allen wrench installation\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 mechanical requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish improves corrosion resistance and reduces light reflection\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME\/ANSI B18.3 socket cap screw standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 hex socket cap screw suitable for tapped holes with 1\/4-28 UNF internal threads in metal assemblies, fixtures, and mechanical components.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a 3\/16-inch hex key or Allen driver. Ensure the mating tapped hole is clean and free of debris before threading. Apply appropriate thread-locking compound or torque to specification per the equipment manufacturer's guidelines. Consult applicable mechanical and equipment codes when used in load-bearing or safety-critical assemblies.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 9\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull or Partial Threading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\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: 581396PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51703004725554,"sku":"581396PR","price":3498.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5e7745a87fe7cb7fe29567a8e23e3a6d.jpg?v=1788414289","url":"https:\/\/voomisupply.com\/products\/value-collection-581396pr-hex-socket-cap-screw-1-4-28-unf","provider":"Voomi Supply","version":"1.0","type":"link"}