{"product_id":"value-collection-225091pr-shoulder-screw-3-8-in-4140-alloy-steel","title":"Value Collection 225091PR Shoulder Screw 3\/8 in 4140 Alloy Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 225091PR is a hex socket shoulder screw machined from 4140 alloy steel, designed for precision-fit applications where a hardened, accurate shoulder diameter is required. The shoulder measures 0.375 inches in diameter and 3.5 inches in length, providing a reliable bearing or pivot surface in mechanical assemblies. The 5\/16-18 UNC thread engages a tapped hole to clamp or locate components while the smooth shoulder guides motion or holds alignment. This fastener is installed by maintenance technicians, machine builders, and industrial mechanics in both production and repair settings.\u003c\/p\u003e\n\u003cp\u003eShoulder screws of this type are commonly used in jigs, fixtures, dies, robotic end-of-arm tooling, conveyor assemblies, and general mechanical linkages where a precise pivot or guide pin is needed. The hex socket drive allows installation with a standard hex key or socket driver in tight clearance areas. This screw is sold individually but carries a minimum order quantity of 5 units per order.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.375-inch shoulder diameter provides a precision bearing surface for guided or pivoting components\u003c\/li\u003e\n  \u003cli\u003e3.5-inch shoulder length accommodates deep stack assemblies or extended guide applications\u003c\/li\u003e\n  \u003cli\u003e4140 alloy steel construction offers high tensile strength and wear resistance\u003c\/li\u003e\n  \u003cli\u003e5\/16-18 UNC thread is a common standard size for broad hardware compatibility\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch hex socket drive allows installation with a standard hex key in confined spaces\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3, ASTM F835, and IFI 124 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard shoulder screw for use in mechanical assemblies requiring a 0.375-inch shoulder diameter and 5\/16-18 UNC thread; confirm tapped hole depth and clearance bore diameter before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a 3\/16-inch hex key or appropriate hex socket driver. Power down and de-energize any machinery before servicing fasteners in moving assemblies. Do not use impact drivers on hex socket shoulder screws, as this can damage the drive recess or distort the shoulder. Verify mating bore and thread dimensions against the assembly drawing prior to installation.\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: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 3.5 inches (3-1\/2 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\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\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\u003eHead Diameter\u003c\/strong\u003e: 0.5625 inches (9\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.25 inches (1\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM F835, IFI 124\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: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.4 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161619\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: 225091PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51718498353458,"sku":"225091PR","price":5065.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/724fd2a8638f49fb8a2bea19bcd1c1ab.jpg?v=1788553843","url":"https:\/\/voomisupply.com\/products\/value-collection-225091pr-shoulder-screw-3-8-in-4140-alloy-steel","provider":"Voomi Supply","version":"1.0","type":"link"}