{"product_id":"value-collection-581826br-hex-socket-cap-screw-1-8-unc","title":"Value Collection 581826BR Hex Socket Cap Screw 1-8 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581826BR is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1-8 UNC thread size and an 18-inch length under the head, making it well-suited for through-bolting heavy components or securing thick structural members. The fastener is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. Drive engagement is via a 3\/4-inch hex socket. Installation requires a torque wrench or hex key set with the appropriate 3\/4-inch socket drive. This part is sold individually.\u003c\/p\u003e\u003cp\u003eThis cap screw is used in fabrication shops, maintenance and repair operations, and industrial equipment assembly where a partially threaded, high-strength socket head fastener is specified. The 1-8 UNC thread form is a coarse-thread standard common in steel assemblies where thread stripping resistance and ease of assembly are priorities. The black oxide finish suits indoor or low-exposure environments. Machinists, millwrights, and maintenance technicians are the primary installers of this fastener type.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-8 UNC coarse thread for strong engagement in steel and alloy substrates\u003c\/li\u003e\n\u003cli\u003e18-inch length under head accommodates thick material stacks or long through-bolt applications\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction provides high tensile and shear strength\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish offers mild corrosion resistance and a non-reflective surface\u003c\/li\u003e\n\u003cli\u003e3\/4-inch hex socket drive for use with standard socket tooling\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank for precise clamping and shear load transfer\u003c\/li\u003e\n\u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 1-8 UNC hex socket cap screw conforming to ASME\/ANSI B18.3 and ASTM A574, suitable for use in any application specifying a partially threaded alloy steel socket head cap screw in that thread size and length.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist, millwright, or maintenance technician familiar with high-strength fastener procedures. Ensure mating threaded holes or nuts are clean, free of debris, and correctly tapped to 1-8 UNC specification before installation. Use the correct 3\/4-inch hex socket drive to avoid cam-out or fastener damage. Refer to applicable engineering specifications or torque tables for the correct clamp load based on grade and joint requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-8 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 18 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 inches\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: 0.0045 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 581826BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51738384204082,"sku":"581826BR","price":77.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2816fc3ea1a0de3ebbded6c00312548_acb3825d-7e0e-43ee-9488-2749f6c3193f.jpg?v=1788798906","url":"https:\/\/voomisupply.com\/products\/value-collection-581826br-hex-socket-cap-screw-1-8-unc","provider":"Voomi Supply","version":"1.0","type":"link"}