{"product_id":"value-collection-mspi0-400250-100bx-machine-screw-4-40","title":"Value Collection MSPI0-400250-100BX Machine Screw 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MSPI0-400250-100BX is a 4-40 UNC machine screw designed for light-duty fastening in metal, plastic, and composite assemblies. The pan head profile provides a low-profile bearing surface with a wide, flat underside that distributes clamping load evenly across the mating material. The slotted drive accepts a standard flat-blade screwdriver, making it compatible with both manual and power installation in high-volume assembly and service work. Constructed from Grade 2 steel with a zinc-plated finish, this screw resists light corrosion and meets standard dimensional tolerances for 4-40 UNC thread systems. Sold in boxes of 100 units, this fastener is well-suited for electrical panel work, equipment assembly, and general trade service applications.\u003c\/p\u003e\n\u003cp\u003eThis screw is used across electrical, HVAC, and light mechanical applications where a small-diameter, fine-pitch fastener is required. The 4-40 UNC thread size is common in control boards, terminal blocks, junction boxes, equipment enclosures, and instrumentation panels. At 0.25 inches in length under head, it is intended for thin-material applications where deeper thread engagement is not required. Electricians, HVAC technicians, and general mechanical tradespeople typically keep this size on hand for field service and repair work.\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 in electrical and mechanical assemblies\u003c\/li\u003e\n  \u003cli\u003ePan head profile distributes clamping force and sits flush enough for most enclosure and panel applications\u003c\/li\u003e\n  \u003cli\u003eSlotted drive works with standard flat-blade screwdrivers and bit drivers\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction meets standard strength requirements for light-duty fastening\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides light corrosion resistance in typical indoor service environments\u003c\/li\u003e\n  \u003cli\u003eBox quantity of 100 supports field stocking and assembly production runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 UNC machine screw for use in any application requiring a pan head slotted fastener with 0.25-inch length under head in inch-system hardware.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a flat-blade screwdriver or appropriately sized bit driver rated for slotted drive fasteners. Confirm the receiving tapped hole is 4-40 UNC before installation to avoid cross-threading or thread damage. Power down any electrical equipment fully before fastening or removing screws in live panels or control enclosures. Do not over-torque Grade 2 steel screws in thin sheet metal or plastic tapped holes, as thread stripping can occur.\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\u003eHead Type\u003c\/strong\u003e: Pan Head\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: 0.25 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: 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  \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: MSPI0-400250-100BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692797919538,"sku":"MSPI0-400250-100BX","price":451.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/858dd3047b1851d74fc84f3a4a73b9bc.jpg?v=1788303085","url":"https:\/\/voomisupply.com\/products\/value-collection-mspi0-400250-100bx-machine-screw-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}