{"product_id":"value-collection-r80323112-hex-cap-screw-1-2-20-x-4-in-18-8-ss","title":"Value Collection R80323112 Hex Cap Screw 1\/2-20 X 4 in 18-8 Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R80323112 is a partially threaded hex head cap screw sized 1\/2-20 x 4 inches, manufactured from 18-8 stainless steel with no coating applied. The 1\/2-20 thread designation indicates a half-inch nominal diameter with 20 threads per inch, conforming to the Unified National Fine (UNF) thread standard. The partially threaded shank provides a grip area that resists joint loosening under vibration and allows the fastener to draw mating components tightly together. This screw is appropriate for HVAC equipment assemblies, plumbing system brackets, electrical enclosures, and pool equipment frames where corrosion resistance is a priority. Installation is performed by plumbers, HVAC technicians, electricians, and general trade workers using standard hex-drive or socket tooling.\u003c\/p\u003e\n\u003cp\u003eThe 18-8 stainless steel construction makes this fastener well suited for moist or chemically exposed environments common in mechanical rooms, rooftop equipment installations, and poolside equipment mounting. The uncoated finish preserves the natural corrosion resistance of the 18-8 alloy without additional plating that could flake or interact with dissimilar metals. The UNF thread form is widely used in precision mechanical assemblies and equipment manufactured to inch-standard tolerances, making this screw a direct fit in applications calling for a fine-thread half-inch fastener.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e18-8 stainless steel construction provides corrosion resistance in wet and chemically exposed environments\u003c\/li\u003e\n  \u003cli\u003e1\/2-20 UNF thread for precise engagement in fine-thread applications\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank allows a full clamp load between joined components\u003c\/li\u003e\n  \u003cli\u003e4-inch length under head accommodates thicker assemblies and stacked components\u003c\/li\u003e\n  \u003cli\u003eUncoated finish maintains alloy integrity without risk of coating delamination\u003c\/li\u003e\n  \u003cli\u003eInch measurement system for compatibility with standard trade tooling and hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit fastener for applications specifying a 1\/2-20 UNF partially threaded hex head cap screw in 18-8 stainless steel, including HVAC equipment frames, plumbing fixture mounting, electrical enclosure assemblies, and pool equipment hardware.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePower down or depressurize any system before removing or installing fasteners on live equipment. Use the correct hex socket or wrench size to avoid rounding the head. Do not mix 18-8 stainless hardware with carbon steel fasteners in the same joint without considering galvanic corrosion potential. Follow applicable torque guidelines for the joint material and fastener grade per the relevant code or equipment manufacturer specification.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF (Unified National Fine)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially 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: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.00655 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: R80323112\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695469723954,"sku":"R80323112","price":308.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d18e26e7c39cb0b366e69d1663a6e6a1.jpg?v=1788335412","url":"https:\/\/voomisupply.com\/products\/value-collection-r80323112-hex-cap-screw-1-2-20-x-4-in-18-8-ss","provider":"Voomi Supply","version":"1.0","type":"link"}