{"product_id":"holo-krome-78082-hex-socket-cap-screw-5-16-18-unc","title":"Holo-krome 78082 Hex Socket Cap Screw 5\/16-18 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HOLO-KROME 78082 is a hex socket cap screw designed for applications requiring a flush, recessed-drive fastener with reliable holding strength. It features a 5\/16-18 UNC thread size, a 1-1\/4 inch length under head, and a 1\/4 inch internal hex drive. Manufactured from 18-8 stainless steel with a bright uncoated finish, it resists corrosion in wet and mildly corrosive environments. The fully threaded shank provides maximum thread engagement along the entire fastened length. This fastener meets ASME B18.3 and ASTM F837 standards, making it suitable for professional trade and mechanical assembly work where dimensional consistency and material traceability are required.\u003c\/p\u003e\u003cp\u003eThis screw is used across HVAC, plumbing, electrical, and general mechanical applications where a socket-drive cap screw is specified. The 5\/16-18 UNC thread is a common coarse-thread size found in equipment panels, brackets, access covers, pump housings, and structural assemblies. The stainless steel construction makes it a practical choice for outdoor enclosures, pool equipment, and other installations where mild corrosion resistance is needed. It is installed using a standard 1\/4 inch hex key or Allen driver.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5\/16-18 UNC coarse thread for broad compatibility with standard tapped holes\u003c\/li\u003e\n\u003cli\u003e1-1\/4 inch length under head for medium-depth fastening applications\u003c\/li\u003e\n\u003cli\u003eFully threaded shank maximizes thread engagement and clamping force\u003c\/li\u003e\n\u003cli\u003e18-8 stainless steel construction provides corrosion resistance in wet or outdoor environments\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish maintains accurate dimensional tolerances\u003c\/li\u003e\n\u003cli\u003eMeets ASME B18.3 and ASTM F837 standards for verified mechanical performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard replacement or service fastener for any application specifying a 5\/16-18 UNC hex socket cap screw with a 1-1\/4 inch length under head per ASME B18.3.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall and remove using a 1\/4 inch hex key or Allen driver. De-energize and isolate the equipment before replacing fasteners on any electrical, HVAC, or mechanical assembly. Do not overtighten stainless steel fasteners, as the material is susceptible to galling — apply an appropriate anti-seize compound when torque retention is critical. Follow applicable equipment manufacturer torque guidelines and relevant codes for the trade involved.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 1-1\/4 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: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 18-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME B18.3 \/ ASTM F837\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 78082\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51730819154226,"sku":"78082","price":2956.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0c9a2a0009891924a2ca223b5da382b3_2132ef5d-9ab3-47e1-8fe1-42f33a3247d9.jpg?v=1788723359","url":"https:\/\/voomisupply.com\/products\/holo-krome-78082-hex-socket-cap-screw-5-16-18-unc","provider":"Voomi Supply","version":"1.0","type":"link"}