{"product_id":"value-collection-872401pr-hex-socket-cap-screw-1-2-20-unf","title":"Value Collection 872401PR Hex Socket Cap Screw 1\/2-20 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 872401PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, fabrication, and industrial maintenance. Manufactured from alloy steel with a zinc-plated finish, this fastener resists corrosion while delivering the tensile strength needed in demanding service environments. The screw uses a 3\/8-inch hex drive and is fully threaded with a 1\/2-20 UNF thread form along its 2-inch length under head. It conforms to ASME B18.8 and ASTM A574 standards, making it appropriate for safety-critical and precision-tolerance applications. Machinists, millwrights, and maintenance technicians are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for use in machine frames, motor mounts, tooling fixtures, and general mechanical assemblies where a flush or recessed cap-screw head is required. The fine 1\/2-20 UNF thread pitch provides a tighter thread engagement than coarse-thread equivalents, which is advantageous in applications requiring precise clamping force control or where vibration resistance is a priority. The fully threaded configuration maximizes thread engagement along the full grip length, supporting applications with thin mating materials or close-tolerance bore depths.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2-20 UNF fine thread for precise clamping and vibration resistance\u003c\/li\u003e\n  \u003cli\u003eFully threaded shank — 2 inches length under head\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch internal hex (Allen) drive for high torque input in tight clearances\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 high-strength requirements\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides corrosion protection in general indoor and controlled environments\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.8 and ASTM A574 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard replacement or new-installation hex socket cap screw for mechanical assemblies requiring a 1\/2-20 UNF fully threaded fastener with a 2-inch length under head and alloy steel construction.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 3\/8-inch hex key or Allen socket driver. De-energize and lock out any machinery before replacing fasteners in live mechanical assemblies, per applicable OSHA lockout\/tagout procedures. Do not exceed the rated torque range for the fastener grade and thread size as specified in ASME or OEM documentation. Inspect mating threads for damage or contamination before installation to ensure full thread engagement and proper clamping force.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex (Allen)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME B18.8, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\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: 872401PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51702260498738,"sku":"872401PR","price":1170.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ef6720c757834135ee8af4c7b0630447_7c91eeb9-a2d1-4cef-94a1-92a88f27ce1c.jpg?v=1788410211","url":"https:\/\/voomisupply.com\/products\/value-collection-872401pr-hex-socket-cap-screw-1-2-20-unf","provider":"Voomi Supply","version":"1.0","type":"link"}