{"product_id":"value-collection-581786br-hex-socket-cap-screw-7-8-14-unf","title":"Value Collection 581786BR Hex Socket Cap Screw 7\/8-14 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581786BR is a hex socket cap screw engineered for high-strength fastening applications where a low-profile, recessed-drive head is required. Manufactured from alloy steel with a black oxide finish, this screw offers improved corrosion resistance and reduced galling during installation. It features a 7\/8-14 UNF (Unified National Fine) thread, a 3-1\/4 inch length under head, and a 3\/4 inch hex drive. The partial threading design concentrates clamping force and allows for precise load distribution in structural and mechanical assemblies. Licensed tradespeople and maintenance professionals working in industrial and mechanical service environments are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis hex socket cap screw is suited for precision mechanical assemblies, hydraulic fittings, tooling fixtures, and general industrial fastening where fine-thread engagement and reliable torque retention are critical. The fine thread pitch of 14 threads per inch provides superior holding strength in thinner material sections compared to coarse-thread alternatives. It is appropriate for both new fabrication and field repair work across manufacturing, heavy equipment, and mechanical maintenance contexts.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/8-14 UNF fine-thread specification for high-load engagement in precision assemblies\u003c\/li\u003e\n  \u003cli\u003e3-1\/4 inch length under head accommodates deeper grip lengths in bolted joints\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch internal hex drive accepts standard hex keys and socket drivers\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank concentrates clamping load and resists lateral shear\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction delivers tensile strength suitable for structural fastening\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating provides mild corrosion resistance and reduces light reflection in service environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 and ASTM A574 hex socket cap screw suitable for use in any application requiring a 7\/8-14 UNF 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 qualified mechanical or maintenance tradespeople using a calibrated torque wrench and a properly sized 3\/4 inch hex drive tool. Clean and inspect threaded bores before installation to prevent cross-threading or contamination. Apply a thread lubricant or anti-seize compound where specified by the equipment manufacturer to achieve accurate torque values. Do not substitute thread pitch or drive size without verifying compatibility with the mating component.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-14 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3-1\/4 inches\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\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\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: 581786BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692454052146,"sku":"581786BR","price":18.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2816fc3ea1a0de3ebbded6c00312548_4fa5765b-5faa-40bd-90b9-0b0d5434e151.jpg?v=1788297724","url":"https:\/\/voomisupply.com\/products\/value-collection-581786br-hex-socket-cap-screw-7-8-14-unf","provider":"Voomi Supply","version":"1.0","type":"link"}