{"product_id":"value-collection-581944br-hex-socket-cap-screw-1-3-8-6-unc","title":"Value Collection 581944BR Hex Socket Cap Screw 1-3\/8-6 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581944BR is a fully threaded hex socket cap screw designed for heavy-duty fastening applications in industrial, mechanical, and structural assemblies. Sized at 1-3\/8-6 UNC with a 4-inch length under head, this fastener is driven by a 1-inch hex key and constructed from alloy steel with a black oxide coating for corrosion resistance and reduced surface reflectivity. Machinists, maintenance technicians, and industrial assemblers install this type of fastener where high tensile strength and a compact, recessed drive head are required.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for use in machine assemblies, equipment frames, tooling fixtures, and structural components where a flush or recessed cap-screw profile is needed. The coarse 6 TPI UNC thread pitch allows for faster assembly and is well-suited to applications involving softer base materials or situations where quick engagement is necessary. The black oxide finish helps maintain thread surface integrity during installation and storage.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread size 1-3\/8-6 UNC with fully threaded shaft for maximum thread engagement\u003c\/li\u003e\n  \u003cli\u003e4-inch length under head accommodates deep-reach fastening applications\u003c\/li\u003e\n  \u003cli\u003e1-inch hex drive for use with standard hex keys or socket drivers\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction provides high tensile strength for demanding load conditions\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating adds mild corrosion resistance and reduces light reflection on exposed surfaces\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 fastener 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 fastener for industrial machinery, structural assemblies, and tooling fixtures requiring a 1-3\/8-6 UNC hex socket cap screw with a 4-inch grip length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists or maintenance technicians using a 1-inch hex key or appropriately sized socket driver. Ensure mating threads are clean and free of debris before installation. Follow applicable ASME or equipment manufacturer torque specifications for the fastener grade and joint material. Always de-energize and lock out equipment before replacing or installing fasteners in powered assemblies.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-3\/8-6 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4 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: 1 inch\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: 581944BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692489965874,"sku":"581944BR","price":123.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2816fc3ea1a0de3ebbded6c00312548_c2d39128-ca50-4056-b03a-bf8a02fbd832.jpg?v=1788298350","url":"https:\/\/voomisupply.com\/products\/value-collection-581944br-hex-socket-cap-screw-1-3-8-6-unc","provider":"Voomi Supply","version":"1.0","type":"link"}