{"product_id":"value-collection-221037pr-shoulder-screw-5-16-in-alloy-steel","title":"Value Collection 221037PR Shoulder Screw 5\/16 in Alloy Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 221037PR is an alloy steel shoulder screw designed for precision fastening applications where a controlled shoulder diameter and length are required for alignment, pivoting, or bearing retention. The shoulder measures 0.312 inches in diameter and 1-1\/4 inches in length, with a 1\/4-20 UNC threaded end for secure engagement. The hex socket drive accepts a 5\/32-inch hex key for installation in tight or recessed spaces. Built to Material Grade 8 and left uncoated, this screw is suited for demanding mechanical assemblies where dimensional accuracy matters. Licensed machinists, millwrights, and maintenance technicians are the typical installers.\u003c\/p\u003e\u003cp\u003eThis shoulder screw is used in jigs, fixtures, linkages, and mechanical assemblies across industrial, manufacturing, and general engineering environments. The shoulder acts as a precision bearing or pivot surface, making accurate shoulder diameter and length critical to fit and function. Sold individually, with a minimum order quantity of 25 units, making it appropriate for shop stock or production-level procurement.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlloy Steel construction, Material Grade 8, for high tensile strength in demanding applications\u003c\/li\u003e\n\u003cli\u003eShoulder diameter of 0.312 inches for precision fit in bored or reamed holes\u003c\/li\u003e\n\u003cli\u003eShoulder length of 1-1\/4 inches provides controlled spacing and pivot clearance\u003c\/li\u003e\n\u003cli\u003e1\/4-20 UNC thread standard for reliable engagement in standard tapped holes\u003c\/li\u003e\n\u003cli\u003e5\/32-inch hex socket drive for installation in confined or recessed locations\u003c\/li\u003e\n\u003cli\u003eUncoated finish for dimensional consistency and compatibility with close-tolerance assemblies\u003c\/li\u003e\n\u003cli\u003eMeets ANSI B18.3, ASME\/ANSI B18.3, and ASTM A574 standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard shoulder screw for use in mechanical assemblies, jigs, fixtures, and linkages requiring a 5\/16-inch shoulder diameter and 1-1\/4-inch shoulder length with a 1\/4-20 UNC threaded end.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 5\/32-inch hex key or Allen driver. Ensure the mating hole is reamed or bored to the appropriate tolerance to achieve proper shoulder fit and function. De-energize and lock out any machinery before servicing or replacing fasteners in live assemblies. Torque to specification per the assembly drawing or engineering requirement for the specific application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\/16 inches (0.312 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: 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 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\u003eUNSPSC Code\u003c\/strong\u003e: 31161619\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 221037PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51715572859186,"sku":"221037PR","price":5816.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cc8e18920ba5a4bc619743f2564793ed.jpg?v=1788515810","url":"https:\/\/voomisupply.com\/products\/value-collection-221037pr-shoulder-screw-5-16-in-alloy-steel","provider":"Voomi Supply","version":"1.0","type":"link"}