{"product_id":"value-collection-0406mst-4-40-truss-head-slotted-machine-screw","title":"Value Collection 0406MST 4-40 Truss Head Slotted Machine Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 0406MST is a 4-40 unified coarse thread machine screw with a truss head and slotted drive. Made from steel with a zinc finish, it meets ASME B18.6.3 and SAE J82 standards. The truss head profile features a wide, low-diameter head that distributes clamping load across a broader surface area than a standard pan or round head. With a 3\/8-inch length measured under the head, this screw suits applications requiring a short, precise fastener in light-gauge assemblies. It ships in a minimum order quantity of 100 pieces per package.\u003c\/p\u003e\n\u003cp\u003eThis screw is used in light mechanical and electrical enclosure assembly, control panel fabrication, and small-device hardware applications. The 4-40 thread size is common in instrumentation, electronics housings, HVAC control boards, and low-voltage electrical equipment. The truss head profile makes it well suited for thin sheet metal and plastic panel work where head pull-through resistance is a consideration. Installation is typically performed by sheet metal technicians, electrical assemblers, or service technicians during control component replacement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 unified coarse thread for standard light-duty fastening in instrumentation and panel work\u003c\/li\u003e\n  \u003cli\u003eTruss head profile provides a wide, low-profile bearing surface to reduce pull-through in thin materials\u003c\/li\u003e\n  \u003cli\u003eSlotted drive compatible with standard flat-blade screwdrivers\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc finish for corrosion resistance in indoor applications\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B18.6.3 and SAE J82 dimensional and material standards\u003c\/li\u003e\n  \u003cli\u003eSold in multiples of 100 pieces, suitable for service stock or production use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 machine screw replacement suitable for light mechanical assemblies, electrical enclosures, control panels, and instrumentation hardware that accept a truss head slotted fastener with 3\/8-inch length under head.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a flat-blade screwdriver sized to the slotted head. De-energize all electrical equipment before replacing fasteners in control panels or enclosures. Avoid over-torquing into plastic or thin sheet metal substrates, as the slotted drive is susceptible to cam-out under high torque. Ensure the mating thread 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: 4-40\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: 3\/8 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 and 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\u003eWeight\u003c\/strong\u003e: 0.0013 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\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: 0406MST\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51723858936114,"sku":"0406MST","price":1057.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a38b86d5fad8a202815d21dede883aec.jpg?v=1788608872","url":"https:\/\/voomisupply.com\/products\/value-collection-0406mst-4-40-truss-head-slotted-machine-screw","provider":"Voomi Supply","version":"1.0","type":"link"}