{"product_id":"value-collection-0403msl-4-40-fillister-head-slotted-machine-screw","title":"Value Collection 0403MSL 4-40 Fillister Head Slotted Machine Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 0403MSL is a 4-40 unified coarse-thread machine screw designed for light-duty mechanical fastening in electrical enclosures, instrument panels, and precision assemblies. It features a fillister head profile with a slotted drive, manufactured from steel with a zinc finish for basic corrosion resistance. The thread size follows the inch measurement system with a 3\/16-inch length measured under the head. This screw conforms to ASME B18.6.3 and SAE J82 standards, making it a reliable choice for assemblies that require a dimensionally consistent, specification-grade fastener. Electricians, HVAC technicians, and light industrial mechanics commonly use this style when reassembling control panels or securing small components.\u003c\/p\u003e\u003cp\u003eThis fastener suits residential and commercial applications where a low-profile, tight-tolerance screw is needed. The fillister head sits slightly raised with a smaller diameter than a pan head, allowing it to seat cleanly in counterbored or close-clearance holes. It is well-suited for control board enclosures, junction box covers, instrumentation housings, and similar assemblies. The slotted drive is compatible with standard flat-blade screwdrivers. Sold as a single piece with a minimum order quantity of 100 units.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-40 unified coarse thread for consistent engagement in tapped holes\u003c\/li\u003e\n\u003cli\u003eFillister head profile fits counterbored holes and tight-clearance applications\u003c\/li\u003e\n\u003cli\u003eSlotted drive compatible with standard flat-blade screwdrivers\u003c\/li\u003e\n\u003cli\u003eSteel construction with zinc finish for basic corrosion resistance\u003c\/li\u003e\n\u003cli\u003eConforms to ASME B18.6.3 and SAE J82 fastener standards\u003c\/li\u003e\n\u003cli\u003eInch measurement system, length measured under head\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series machine screw for use in any application requiring a 4-40 thread with a fillister head profile and slotted drive. No washer is included or required by design.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eAlways power down and de-energize any electrical assembly before replacing or installing fasteners in control enclosures or panel boxes, following applicable NEC guidelines. Use a properly sized flat-blade screwdriver to avoid stripping the slotted drive. Do not over-torque small-diameter machine screws into tapped holes, as the 4-40 thread is susceptible to cross-threading and stripping in softer base materials. Verify thread engagement depth matches the tapped hole before applying load.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: Fillister\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\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: J82\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\u003eMeasurement System\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 0403MSL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51718707609906,"sku":"0403MSL","price":1293.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ce04b2a0bc903551cc1889e02ac3a553.jpg?v=1788555115","url":"https:\/\/voomisupply.com\/products\/value-collection-0403msl-4-40-fillister-head-slotted-machine-screw","provider":"Voomi Supply","version":"1.0","type":"link"}