{"product_id":"value-collection-mpfi0-400500-100bx-4-40-x-1-2-in-flat-head-screw","title":"Value Collection MPFI0-400500-100BX 4-40 X 1\/2 in Flat Head Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MPFI0-400500-100BX is a 4-40 UNC machine screw with a flat head and Phillips drive, supplied in a 100-piece box. Manufactured from Grade 2 steel with a zinc-plated finish, this fastener measures 1\/2 inch in overall length and is designed for general-purpose assembly and maintenance applications. The countersunk flat head sits flush with the mating surface when installed in a properly prepared countersunk hole. This screw follows inch-system standards and is compatible with 4-40 UNC tapped holes commonly found in light-gauge metal, electronic enclosures, and mechanical assemblies.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for light-duty industrial, electrical, and mechanical assembly work where a flush-mount Phillips-drive screw is required. Typical applications include panel assembly, junction box mounting, control enclosures, and equipment maintenance across commercial and light industrial settings. The zinc plating provides basic corrosion resistance for indoor and sheltered environments. Installation does not require specialized tooling beyond a standard Phillips screwdriver or bit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 UNC thread form for use in standard inch-system tapped holes\u003c\/li\u003e\n  \u003cli\u003eFlat countersunk head seats flush with the work surface\u003c\/li\u003e\n  \u003cli\u003ePhillips drive compatible with standard No. 1 Phillips bits and screwdrivers\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction for general-purpose fastening duty\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish for basic corrosion resistance in sheltered environments\u003c\/li\u003e\n  \u003cli\u003eSold in a 100-piece box for bench stock and maintenance inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose replacement or stock fastener for any application requiring a 4-40 UNC thread, 1\/2 inch overall length, flat head, Phillips drive machine screw in inch-system hardware.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a properly tapped or pre-threaded 4-40 UNC hole and a No. 1 Phillips screwdriver or bit driver. For flush seating, the receiving material must be countersunk to match the flat head angle before driving the screw. Do not overtighten — Grade 2 steel has lower tensile strength than higher-grade fasteners and is not rated for high-clamp-load or structural applications. Verify thread engagement depth before finalizing torque to avoid stripping the mating thread.\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 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength (Overall)\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Flat (Countersunk)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Phillips\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-Plated\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 (per package)\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: MPFI0-400500-100BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51697055203634,"sku":"MPFI0-400500-100BX","price":817.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3c0531415b7147b280f8852955660e44.jpg?v=1788348873","url":"https:\/\/voomisupply.com\/products\/value-collection-mpfi0-400500-100bx-4-40-x-1-2-in-flat-head-screw","provider":"Voomi Supply","version":"1.0","type":"link"}