{"product_id":"value-collection-msfi0-400500-100bx-4-40-flat-head-slotted-machine","title":"Value Collection MSFI0-400500-100BX 4-40 Flat Head Slotted Machine","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MSFI0-400500-100BX is a 4-40 x 0.5-inch overall length flat head machine screw designed for general fastening applications in light assemblies, enclosures, and equipment panels. Made from Grade 2 steel with a zinc finish, it delivers basic corrosion resistance suitable for indoor and protected environments. The slotted flat head sits flush with or slightly below the mating surface when installed in a countersunk hole, making it a common choice where a smooth surface profile is required. This box contains 100 screws, supporting both bench-stock replenishment and moderate production use.\u003c\/p\u003e\n\u003cp\u003eThese screws are suited for use in electrical enclosures, light-duty metal and plastic assemblies, HVAC control panels, and other applications calling for a standard 4-40 Unified National Coarse thread fastener. The 0.5-inch overall length equals the length under the head, indicating the full shank is threaded. They are installed by electricians, HVAC technicians, and mechanical assemblers working with small-format threaded hardware in residential and light commercial equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 UNC thread for compatibility with standard tapped holes and hex nuts in light assemblies\u003c\/li\u003e\n  \u003cli\u003eFlat head profile allows flush or countersunk installation for a clean surface finish\u003c\/li\u003e\n  \u003cli\u003eSlotted drive accepts a standard flat-blade screwdriver\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction provides adequate strength for light-duty fastening\u003c\/li\u003e\n  \u003cli\u003eZinc finish offers basic corrosion resistance for indoor and protected environments\u003c\/li\u003e\n  \u003cli\u003eBox quantity of 100 pieces supports bench-stock and small production needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 UNC flat head slotted machine screw suitable for any application requiring a 4-40 threaded fastener with a 0.5-inch overall length and flat head profile.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a flat-blade screwdriver sized to the slot to avoid cam-out and head damage. When threading into metal, ensure the mating hole is tapped to 4-40 UNC specification; for flush seating, the receiving surface should be properly countersunk to match the flat head angle. De-energize any electrical equipment before fastening within live panels or enclosures per applicable NEC guidelines. Do not overtighten Grade 2 fasteners in thin materials, as the lower tensile rating makes them susceptible to stripping.\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\u003eThread Standard\u003c\/strong\u003e: UNC (Unified National Coarse)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Slotted\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: Grade 2\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\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 100 pieces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: MSFI0-400500-100BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":52107164418354,"sku":"MSFI0-400500-100BX","price":719.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a0f7b923ae3351522e51d4df00ea21df.jpg?v=1790074054","url":"https:\/\/voomisupply.com\/products\/value-collection-msfi0-400500-100bx-4-40-flat-head-slotted-machine","provider":"Voomi Supply","version":"1.0","type":"link"}