{"product_id":"holo-krome-72444-hex-socket-cap-screw-1-1-2-6-unc","title":"Holo-krome 72444 Hex Socket Cap Screw 1-1\/2-6 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HOLO-KROME 72444 is a heavy-duty hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1-1\/2-6 UNC thread and an 8-inch length under head, with partial threading along the shank. The drive type is a 1-inch internal hex socket, requiring a matching hex key or Allen driver for installation. Manufactured from alloy steel with a black oxide coating, this fastener delivers corrosion resistance and a non-reflective finish suitable for demanding service environments. Licensed contractors, millwrights, and maintenance professionals install this class of fastener in heavy equipment, machinery frames, and fabricated steel structures.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for applications requiring a coarse 1-1\/2-6 UNC thread engagement in steel, cast iron, or similar base materials. The partial threading allows the unthreaded shank to bear shear loads, making it a common choice in bolted joints where precise clamping and alignment are critical. Typical installation scenarios include industrial machinery assembly, heavy structural connections, and maintenance repair work on equipment with large-diameter threaded holes. It meets ASME B18.3 and ASTM A574 dimensional and mechanical standards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-1\/2-6 UNC coarse thread for strong engagement in large-diameter tapped holes\u003c\/li\u003e\n  \u003cli\u003e8-inch length under head with partial threading for combined shear and clamping performance\u003c\/li\u003e\n  \u003cli\u003e1-inch hex socket drive for high-torque installation with standard hex tooling\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 mechanical property requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and a low-reflectance surface\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.3 dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit fastener for applications requiring a 1-1\/2-6 UNC hex socket cap screw per ASME B18.3 and ASTM A574 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified millwright, mechanic, or maintenance technician familiar with large-diameter fastener torque procedures. Always verify the tapped hole thread condition and clean threads before installation. Use the correct 1-inch hex key or drive tool rated for the torque required by the joint design. Follow applicable industry standards and engineering specifications for final torque values, as none are provided by the manufacturer data for this listing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 8 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 B18.3, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.45 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: HOLO-KROME\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 72444\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51739669365042,"sku":"72444","price":134.38,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/df13c881567e66359a64086125e0d103.jpg?v=1788817560","url":"https:\/\/voomisupply.com\/products\/holo-krome-72444-hex-socket-cap-screw-1-1-2-6-unc","provider":"Voomi Supply","version":"1.0","type":"link"}