{"product_id":"value-collection-221001pr-shoulder-screw-1-4-in-alloy-steel","title":"Value Collection 221001PR Shoulder Screw 1\/4 in Alloy Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 221001PR is an alloy steel shoulder screw with a 1\/4-inch shoulder diameter and a 3\/8-inch shoulder length. The hex socket drive accepts a 1\/8-inch hex key for installation and removal. The screw features a 10-24 UNC thread and an uncoated finish, leaving the alloy steel grade 8 construction exposed for applications where additional coating is not required. This fastener is installed by millwrights, maintenance technicians, and mechanical assemblers working on precision machinery, jigs, fixtures, and mechanical linkages where a hardened, tight-tolerance shaft is needed within the assembly.\u003c\/p\u003e\n\u003cp\u003eShoulder screws of this type serve as pivot points, guide pins, and spacers in mechanical assemblies. The 3\/8-inch shoulder acts as a precision shaft that locates or pivots moving components, while the 10-24 threaded section anchors the fastener to the base material. Common applications include tooling fixtures, die sets, linkage mechanisms, and light industrial equipment where repeatable positioning and controlled movement are required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-inch shoulder diameter with 3\/8-inch shoulder length for precise shaft location\u003c\/li\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile strength and wear resistance\u003c\/li\u003e\n  \u003cli\u003e10-24 UNC thread standard for broad compatibility with tapped assemblies\u003c\/li\u003e\n  \u003cli\u003e1\/8-inch hex socket drive for installation with a standard hex key\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for dry or lightly lubricated environments\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI B18.3, ASME\/ANSI B18.3, and ASTM A574 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, tooling fixtures, and linkage systems requiring a 1\/4-inch shoulder diameter and 10-24 UNC threaded connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 1\/8-inch hex key; de-energize and lock out any equipment before servicing mechanical assemblies containing this fastener. Ensure the receiving bore is sized appropriately for the 1\/4-inch shoulder to achieve proper fit and function. Do not use an impact driver on hex socket shoulder screws, as this can damage the drive recess or distort the shoulder.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 10-24 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: 1\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 3\/16 inch (0.1875 inch)\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\u003eThread Standard\u003c\/strong\u003e: UNC\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: 221001PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692870992178,"sku":"221001PR","price":4992.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0e3d766cb8518573f15cf7cee67626c2.jpg?v=1788304326","url":"https:\/\/voomisupply.com\/products\/value-collection-221001pr-shoulder-screw-1-4-in-alloy-steel","provider":"Voomi Supply","version":"1.0","type":"link"}