{"product_id":"holo-krome-72136-hex-socket-cap-screw-5-16-18-unc-2-in","title":"Holo-krome 72136 Hex Socket Cap Screw 5\/16-18 Unc 2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HOLO-KROME 72136 is a hex socket cap screw designed for high-strength mechanical fastening in industrial, commercial, and trade applications. It features a 5\/16-18 UNC thread with a 2-inch length under the head and is partially threaded, which helps maintain clamping load in thicker assemblies. The drive is a 1\/4-inch internal hex socket, engaged with a standard Allen key or hex bit driver. Constructed from alloy steel with a black oxide finish, this fastener delivers solid tensile strength and moderate corrosion resistance in controlled environments. Machinists, millwrights, maintenance technicians, and HVAC equipment installers commonly use this type of fastener when securing brackets, panels, and mechanical assemblies.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for use in mechanical assemblies, equipment panels, structural brackets, and machinery frames where a recessed-drive, high-torque fastener is required. The 5\/16-18 UNC coarse thread is a widely used size in North American manufactured equipment and replacement components. The partial thread design is appropriate for through-bolting and clamping applications where the unthreaded shank spans across mating materials. It meets ASME B18.3 and ASTM A574 standards, making it appropriate for demanding mechanical fastening work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 UNC coarse thread for broad compatibility with standard North American hardware\u003c\/li\u003e\n  \u003cli\u003e2-inch length under head with partial threading for clamping and through-bolt applications\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch internal hex socket drive for high torque transfer with a standard Allen key or hex bit\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 for high-strength fastener requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating provides mild corrosion resistance and reduces surface galling\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B18.3 dimensional standard for socket cap screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASME B18.3 hex socket cap screw suitable for general mechanical assemblies, equipment panels, and structural brackets requiring a 5\/16-18 UNC partially threaded fastener.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 1\/4-inch hex key or hex socket bit driver. Ensure the mating threaded hole or nut is clean and free of debris before driving. Apply appropriate thread engagement depth per ASME guidelines for the material being fastened. Do not exceed rated torque for the alloy grade, and always de-energize or lock out any equipment before accessing fastener locations on powered machinery.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 2 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\/4 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\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\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: 72136\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51742247452978,"sku":"72136","price":10031.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/350eb09e55338d658240e5d4cdb2ed70.jpg?v=1788836181","url":"https:\/\/voomisupply.com\/products\/holo-krome-72136-hex-socket-cap-screw-5-16-18-unc-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}