{"product_id":"value-collection-33721-1-hex-socket-cap-screw-1-1-4-7-unc","title":"Value Collection -33721-1 Hex Socket Cap Screw 1-1\/4-7 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION -33721-1 is a hex socket cap screw designed for high-strength fastening applications requiring a recessed drive interface. Sized at 1-1\/4-7 UNC thread with a 3.5-inch length under head, this fastener is fully threaded and driven with a 7\/8-inch hex key. Constructed from alloy steel with a black oxide finish, it meets ASME\/ANSI B18.3 and ASTM A574 standards. Machinists, maintenance technicians, and mechanical contractors install this type of fastener where a flush or countersunk head profile and high clamp load are required.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for heavy-duty mechanical assemblies, industrial equipment, and structural connections where a standard hex head is not practical. The large 1-1\/4-7 UNC thread diameter makes it appropriate for thick-section steel, cast iron, or heavy plate applications. It is commonly installed in manufacturing, machine building, and industrial maintenance environments where ASME B18.3 socket cap screws are specified.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-1\/4-7 UNC thread size for high-load fastening in heavy-section material\u003c\/li\u003e\n  \u003cli\u003e3.5-inch length under head, fully threaded along the entire shank\u003c\/li\u003e\n  \u003cli\u003e7\/8-inch hex drive for positive torque transfer with a standard hex key or bit socket\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 for high-strength socket cap screw requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and reduces light reflection\u003c\/li\u003e\n  \u003cli\u003eComplies with ASME\/ANSI B18.3 dimensional and mechanical standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style or maintenance replacement hex socket cap screw for industrial machinery, structural assemblies, and equipment requiring ASME\/ANSI B18.3 compliant 1-1\/4-7 UNC fully threaded fasteners.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or mechanical maintenance technicians using a 7\/8-inch hex key or bit socket and appropriate torque wrench. De-energize and lock out all equipment before replacing fasteners in powered machinery per OSHA lockout\/tagout procedures. Verify thread engagement depth and mating thread condition before torquing. Do not substitute black oxide fasteners in outdoor or wet environments without additional corrosion protection.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/4-7 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3.5 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 Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 7\/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\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: 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: -33721-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51691308941618,"sku":"-33721-1","price":48.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7a91dbadd2b3ef1a2abbccd044dce1c9.jpg?v=1788283032","url":"https:\/\/voomisupply.com\/products\/value-collection-33721-1-hex-socket-cap-screw-1-1-4-7-unc","provider":"Voomi Supply","version":"1.0","type":"link"}