{"product_id":"value-collection-a210500-truss-head-machine-screw-1-4-20","title":"Value Collection A210500 Truss Head Machine Screw 1\/4-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION A210500 is a 1\/4-20 x 1\/2-inch truss head machine screw designed for general fastening applications across mechanical, electrical, and light structural assemblies. The truss head profile offers a wider bearing surface than a standard pan head, making it well suited for thin or soft materials where pull-through resistance matters. Constructed from grade 18-8 stainless steel with a bright uncoated finish, this screw delivers solid corrosion resistance without additional plating. Drive type is Phillips. Thread form is Unified National Coarse (UNC). Length is measured under the head at 1\/2 inch. Minimum order quantity is 100 pieces per package.\u003c\/p\u003e\n\u003cp\u003eThis screw sees common use in HVAC panel assemblies, electrical enclosures, plumbing fixture brackets, and light-duty equipment mounting where stainless steel is specified for moisture-exposed or corrosion-prone environments. The 1\/4-20 UNC thread is a widely standardized size that mates with common tapped holes and hex nuts across trade and OEM applications. Grade 18-8 stainless is appropriate for indoor and moderate outdoor service conditions. It is not intended for marine or high-chloride environments where a higher alloy grade would be required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 UNC thread for compatibility with standardized tapped holes and fastener hardware\u003c\/li\u003e\n  \u003cli\u003eTruss head provides wider bearing surface to reduce pull-through on thin or soft base materials\u003c\/li\u003e\n  \u003cli\u003eGrade 18-8 stainless steel construction for corrosion resistance in moisture-exposed assemblies\u003c\/li\u003e\n  \u003cli\u003ePhillips drive for quick installation with standard bit drivers\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no plating to chip, flake, or add dimensional variation\u003c\/li\u003e\n  \u003cli\u003e1\/2-inch length measured under head for consistent engagement depth in tapped or through-hole applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose 1\/4-20 UNC machine screw suitable for use with standard tapped holes, threaded inserts, and hex nuts conforming to Unified National Coarse thread specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a Phillips screwdriver or power driver with a Phillips bit sized for a number 2 tip, which is standard for 1\/4-inch machine screws. De-energize or de-pressurize any assembly before accessing fastener locations in electrical or pressurized systems. Avoid overtorquing stainless steel fasteners into stainless tapped holes, as galling can seize the thread — applying an anti-seize compound is common practice in the trade. Ensure the mating thread or nut is clean and free of debris before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Truss\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Phillips\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1\/2 inches\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\u003eWasher Style\u003c\/strong\u003e: Without Washer\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: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161504\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: A210500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51700388790578,"sku":"A210500","price":42.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d840b6fe3359f81c8a050d155b7b9674.jpg?v=1788389732","url":"https:\/\/voomisupply.com\/products\/value-collection-a210500-truss-head-machine-screw-1-4-20","provider":"Voomi Supply","version":"1.0","type":"link"}