{"product_id":"value-collection-581757br-hex-socket-cap-screw-7-8-9-unc","title":"Value Collection 581757BR Hex Socket Cap Screw 7\/8-9 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581757BR is a hex socket cap screw designed for high-strength bolted connections in industrial, mechanical, and structural applications. This fastener features a 7\/8-9 UNC thread size with a 1-1\/2 inch length under head and is partially threaded for positive clamping force. Manufactured from alloy steel with a black oxide finish, it delivers corrosion resistance and a clean appearance. The 3\/4-inch hex drive socket interface allows for high-torque installation with standard hex keys or drive tools. Licensed tradespeople and maintenance mechanics typically install this screw in machinery, equipment frames, and heavy assemblies.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for residential and commercial mechanical installations where a strong, recessed-head fastener is required. The partially threaded shank provides shear strength across joints and is a common choice in equipment assembly, jig and fixture work, and structural bolting. The alloy steel construction and black oxide coating make it appropriate for both interior and moderate-exposure environments where paint or plating is not required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/8-9 UNC thread size for high-load applications\u003c\/li\u003e\n  \u003cli\u003e1-1\/2 inch length under head, partially threaded shank\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction for high tensile strength\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch hex drive for high-torque installation\u003c\/li\u003e\n  \u003cli\u003eMeets 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 an OEM-style replacement or direct-use hex socket cap screw for industrial machinery, structural assemblies, and equipment requiring a 7\/8-9 UNC partially threaded fastener with a 3\/4 inch hex drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanic or tradesperson using an appropriately rated 3\/4 inch hex key or socket drive tool. Always confirm the mating thread and hole depth before installation to avoid cross-threading or bottoming out. Follow applicable torque guidelines from the equipment manufacturer or relevant ASME standards when tightening. Ensure all equipment is de-energized and load-free before replacing or installing structural fasteners.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-9 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/4 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: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3 and 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: 581757BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51721130180914,"sku":"581757BR","price":62.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/34ff244e742d030529cb70447d51f779.jpg?v=1788574027","url":"https:\/\/voomisupply.com\/products\/value-collection-581757br-hex-socket-cap-screw-7-8-9-unc","provider":"Voomi Supply","version":"1.0","type":"link"}