{"product_id":"value-collection-1428mst-1-4-20-truss-head-machine-screw","title":"Value Collection 1428MST 1\/4-20 Truss Head Machine Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 1428MST is a 1\/4-20 truss head machine screw designed for general-purpose fastening in metal, wood, and composite assemblies. The broad, low-profile truss head distributes clamping load over a wider bearing surface compared to a standard round or pan head, making it well suited for thin-gauge material and sheet metal work. Constructed from steel with a zinc finish, this screw meets ASME B18.6.3 and SAE J82 standards. The slotted drive accepts a standard flat-blade screwdriver. Length is measured under the head at 1-3\/4 inches on a 1\/4-20 unified coarse thread.\u003c\/p\u003e\n\u003cp\u003eThis screw is used across a broad range of trade and light industrial applications including HVAC equipment assembly, electrical enclosure fabrication, plumbing fixture mounting, and general mechanical assembly. The zinc finish provides a baseline level of corrosion resistance suitable for dry or mildly humid indoor environments. Truss head geometry is commonly specified where a countersunk or hex head is not appropriate and a wider bearing footprint is required. Sold in multiples of 100.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTruss head profile provides wide, low-profile bearing surface for thin-material fastening\u003c\/li\u003e\n  \u003cli\u003e1\/4-20 unified coarse thread for broad tool and hardware compatibility\u003c\/li\u003e\n  \u003cli\u003e1-3\/4 inch length under head for moderate-depth fastening applications\u003c\/li\u003e\n  \u003cli\u003eZinc finish for corrosion resistance in dry indoor environments\u003c\/li\u003e\n  \u003cli\u003eSlotted drive accepts standard flat-blade screwdrivers\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B18.6.3 and SAE J82 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or general-use machine screw compatible with any 1\/4-20 threaded hole or nut in residential and light commercial mechanical assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a flat-blade screwdriver sized to the slot width of a 1\/4-20 truss head fastener. Ensure the mating threads or nut is clean and free of debris before driving. Do not overtorque slotted fasteners, as the drive is more susceptible to cam-out than hex or Torx drive styles. Follow applicable mechanical codes and equipment manufacturer torque requirements for the specific assembly.\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\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: Slotted\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: J82\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWasher Style\u003c\/strong\u003e: Without Washer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME B18.6.3, SAE J82\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161504\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100\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: 1428MST\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692000706866,"sku":"1428MST","price":2770.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0a332fc9a31810d392fb5d8099083ad6_bb7d107d-5a3e-47f2-b998-2351333d7f4b.jpg?v=1788291896","url":"https:\/\/voomisupply.com\/products\/value-collection-1428mst-1-4-20-truss-head-machine-screw","provider":"Voomi Supply","version":"1.0","type":"link"}