{"product_id":"value-collection-221211pr-shoulder-screw-5-8-in-6-in-1-2-13","title":"Value Collection 221211PR Shoulder Screw 5\/8 in 6 in 1\/2-13","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 221211PR is a hex socket shoulder screw machined from 4140 alloy steel with an uncoated finish. The shoulder measures 0.625 inches in diameter and 6 inches in length, providing a precision bearing surface for rotating or sliding components. The 1\/2-13 UNC threaded section anchors the fastener into tapped holes, while the 7\/8-inch head diameter and 3\/8-inch head height allow positive seating against the mating face. A 5\/16-inch hex socket drive accepts standard Allen keys or hex bit sockets. This fastener meets ANSI B18.3, ASME\/ANSI B18.3, and ASTM A574 standards and is used by machinists, maintenance technicians, and assembly professionals working on precision mechanical assemblies.\u003c\/p\u003e\n\u003cp\u003eShoulder screws of this type are commonly used to create pivot points, guide shafts, or fixed-clearance spacers in jigs, fixtures, die sets, and mechanical linkages. The 6-inch shoulder length suits applications requiring a longer bearing surface than standard short-body shoulder screws provide. Industrial maintenance, machine shop, and tooling environments are the most typical installation contexts. The 4140 alloy steel construction offers good tensile strength and wear resistance for moderate-duty dynamic and static applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.625-inch precision shoulder diameter provides accurate bearing and guide surface\u003c\/li\u003e\n  \u003cli\u003e6-inch shoulder length accommodates deep fixtures, long pivots, and extended guide applications\u003c\/li\u003e\n  \u003cli\u003e4140 alloy steel construction delivers strength and wear resistance\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 UNC thread for positive threaded engagement in standard tapped holes\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch hex socket drive compatible with Allen keys and hex bit drivers\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI B18.3, ASME\/ANSI B18.3, and ASTM A574 standards\u003c\/li\u003e\n  \u003cli\u003eUncoated finish — suitable for secondary coating or use as-supplied\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 any tapped 1\/2-13 UNC hole requiring a 0.625-inch shoulder bearing surface.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or maintenance technicians using a 5\/16-inch hex key or hex bit driver. Ensure the receiving tapped hole is clean and dimensioned to 1\/2-13 UNC before threading. Torque to the assembly specification for the application — do not over-drive, as the shoulder must seat flush against the mating surface to function correctly. Handle the uncoated steel surface appropriately if corrosion protection is required for the service environment.\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: 5\/8 inches (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 7\/8 inches (0.8750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\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\/16 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: 4140\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: 0.01 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: 221211PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720261534002,"sku":"221211PR","price":34.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9e881f34d7465459a02b582e8f515cf5.jpg?v=1788561992","url":"https:\/\/voomisupply.com\/products\/value-collection-221211pr-shoulder-screw-5-8-in-6-in-1-2-13","provider":"Voomi Supply","version":"1.0","type":"link"}