{"product_id":"value-collection-581959br-hex-socket-cap-screw-1-1-2-6-unc","title":"Value Collection 581959BR Hex Socket Cap Screw 1-1\/2-6 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581959BR is a heavy-duty hex socket cap screw designed for high-strength fastening applications in industrial, structural, and mechanical assemblies. Manufactured from alloy steel with a black oxide finish, this cap screw measures 13 inches in length under head and carries a 1-1\/2-6 UNC thread form. It is partially threaded, which is standard for long-body cap screws of this size, allowing the unthreaded shank to bear shear loads. The 1-inch hex drive accepts a standard Allen or hex key socket and torques to the high clamp loads expected from ASME\/ANSI B18.3 and ASTM A574 hardware. Machinists, millwrights, and mechanical contractors working on heavy equipment, fixtures, and structural frames are the primary installers.\u003c\/p\u003e\u003cp\u003eThis cap screw is suited for use in heavy industrial machinery, fabrication fixtures, structural steel assemblies, and large-format mechanical equipment where a high-strength 1-1\/2-6 UNC fastener is specified. Partial threading on a 13-inch body makes it particularly appropriate for through-bolt and close-tolerance applications where the shank must pass through a clearance hole before engaging the tapped bore. It is sold individually, making it practical for replacement or low-quantity repair work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-1\/2-6 UNC thread form — coarse pitch suitable for high-load industrial fastening\u003c\/li\u003e\n\u003cli\u003e13-inch length under head with partial threading for shear-load applications\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction meets ASTM A574 high-strength requirements\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides moderate corrosion resistance and reduces light reflection in precision assemblies\u003c\/li\u003e\n\u003cli\u003e1-inch hex socket drive accommodates standard industrial hex key and socket tools\u003c\/li\u003e\n\u003cli\u003eConforms to ASME\/ANSI B18.3 dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 and ASTM A574 hex socket cap screw for any application specifying a 1-1\/2-6 UNC partially threaded alloy steel cap screw with a 13-inch length under head.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified millwright, machinist, or mechanical contractor familiar with high-strength fastener torque requirements for this diameter and grade. Ensure the mating tapped hole is clean, properly sized for 1-1\/2-6 UNC, and free of debris before installation. A calibrated torque wrench with a 1-inch hex socket is required to achieve proper clamp load without overloading the joint. De-energize and lock out all equipment before servicing any fastened assembly per applicable OSHA and facility lockout\/tagout procedures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/2-6 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 13 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 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\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: 7.9 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: 581959BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51706040844594,"sku":"581959BR","price":88.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2816fc3ea1a0de3ebbded6c00312548_eb9e651f-5098-43d7-bee6-e05ed6b6bffa.jpg?v=1788432329","url":"https:\/\/voomisupply.com\/products\/value-collection-581959br-hex-socket-cap-screw-1-1-2-6-unc","provider":"Voomi Supply","version":"1.0","type":"link"}