{"product_id":"value-collection-221025p-shoulder-screw-5-16-in-alloy-steel","title":"Value Collection 221025P Shoulder Screw 5\/16 in Alloy Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 221025P is an alloy steel shoulder screw designed for precision fastening applications where a fixed-diameter bearing surface is required. The shoulder measures 0.312 inches in diameter and 1\/2 inch in length, providing a smooth, hardened pivot or spacer surface between mated components. A 1\/4-20 UNC threaded shank locks the fastener in place. Drive engagement is through a 5\/32 inch hex socket recess in a rounded head. Manufactured to Grade 8 material specification and compliant with ANSI B18.3 and ASTM A574 standards, this screw suits demanding mechanical assemblies where dimensional consistency and shear strength are critical.\u003c\/p\u003e\n\u003cp\u003eShoulder screws of this type are commonly installed in jigs, fixtures, linkages, and pivot assemblies across industrial, mechanical, and trade applications. The uncoated alloy steel construction is appropriate for indoor or controlled-environment use where corrosion exposure is limited. This screw is typically installed by machinists, maintenance technicians, or mechanical contractors working on precision equipment, tooling, or actuator linkages. The minimum order quantity is 25 pieces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eShoulder diameter of 0.312 inches provides a precise bearing surface for pivots and spacers\u003c\/li\u003e\n  \u003cli\u003e1\/2 inch shoulder length suits standard fixture and linkage stack-ups\u003c\/li\u003e\n  \u003cli\u003e1\/4-20 UNC threaded shank for secure engagement with standard tapped holes\u003c\/li\u003e\n  \u003cli\u003e5\/32 inch hex socket drive for torque application in confined spaces\u003c\/li\u003e\n  \u003cli\u003eGrade 8 alloy steel construction meets ANSI B18.3, ASME\/ANSI B18.3, and ASTM A574 standards\u003c\/li\u003e\n  \u003cli\u003eUncoated finish — suitable for applications where additional coatings or platings are applied post-installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ANSI B18.3 shoulder screw for use in precision mechanical assemblies, jigs, fixtures, and pivot linkages that require a 5\/16 inch shoulder diameter and 1\/4-20 UNC threaded engagement.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or mechanical technicians using a 5\/32 inch hex key or driver. Ensure the mating tapped hole is clean and thread-chased to 1\/4-20 UNC before installation. De-energize and lock out any equipment before servicing assemblies containing shoulder screws. Do not exceed the rated shear and tensile load for Grade 8 alloy steel fasteners of this diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Shoulder Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Diameter\u003c\/strong\u003e: 0.312 inches (5\/16 inch nominal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\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: 5\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Rounded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 0.419 to 0.438 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.209 to 0.219 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI B18.3, ASME\/ANSI B18.3, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 25\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: 221025P\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720335294770,"sku":"221025P","price":6019.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d399ba92bffd0a99ee09e1e4eefd3ddb.jpg?v=1788562563","url":"https:\/\/voomisupply.com\/products\/value-collection-221025p-shoulder-screw-5-16-in-alloy-steel","provider":"Voomi Supply","version":"1.0","type":"link"}