{"product_id":"value-collection-0420msl-4-40-fillister-head-slotted-machine-screw","title":"Value Collection 0420MSL 4-40 Fillister Head Slotted Machine Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Value Collection 0420MSL is a 4-40 unified coarse thread machine screw with a fillister head and slotted drive, manufactured from steel with a zinc finish. It measures 1-1\/4 inches in length under head and conforms to ASME B18.6.3 and SAE J82 standards. The fillister head profile features a small, high-crowned head with a deep slot, making it well suited for applications where a recessed or close-clearance head is needed. The zinc finish provides basic corrosion resistance. This screw is sold individually but carries a minimum order quantity of 100 pieces, making it appropriate for shop stock or production use by maintenance technicians, electricians, and mechanical assemblers.\u003c\/p\u003e\u003cp\u003eThe 0420MSL is used in light-duty mechanical assemblies, electrical enclosures, panels, and control boxes where a 4-40 threaded fastener with a slotted fillister head is specified. The small diameter and fine thread pitch make it common in instrument panels, electronic enclosures, and precision assemblies requiring a clean, low-profile head without a washer. Installation is handled by general maintenance trades, electricians, and assembly technicians in both residential and commercial settings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-40 unified coarse thread for use with standard 4-40 tapped holes or nuts\u003c\/li\u003e\n\u003cli\u003eFillister head with deep slotted drive for reliable engagement in tight spaces\u003c\/li\u003e\n\u003cli\u003e1-1\/4 inches length under head as measured per ASME B18.6.3\u003c\/li\u003e\n\u003cli\u003eSteel construction with zinc finish for basic corrosion protection\u003c\/li\u003e\n\u003cli\u003eManufactured to SAE J82 material grade for consistent mechanical properties\u003c\/li\u003e\n\u003cli\u003eNo washer face — ships without integrated washer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series machine screw for any application specifying a 4-40 x 1-1\/4 inch fillister head slotted fastener per ASME B18.6.3.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall using a flat-blade screwdriver sized to the slot width to avoid cam-out and head damage. Ensure the mating hole or nut is tapped to 4-40 specifications before driving the screw. Do not over-torque small-diameter machine screws, as the threads and head slot can strip easily. De-energize any electrical panel or enclosure before fastener work in live equipment.\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: 1-1\/4 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 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\u003eUNSPSC Code\u003c\/strong\u003e: 31161504\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.00283 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\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: 0420MSL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51710871044402,"sku":"0420MSL","price":2423.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b2cab35eae16bc76dc61eda773519875.jpg?v=1788471683","url":"https:\/\/voomisupply.com\/products\/value-collection-0420msl-4-40-fillister-head-slotted-machine-screw","provider":"Voomi Supply","version":"1.0","type":"link"}