{"product_id":"value-collection-1508msr-1-4-28-x-1-2-in-round-head-slotted-screw","title":"Value Collection 1508MSR 1\/4-28 X 1\/2 in Round Head Slotted Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 1508MSR is a 1\/4-28 UNF round head machine screw with a slotted drive, manufactured from steel with a zinc finish. It measures 1\/2 inch in length under the head and is produced to ASME B18.6.3 and SAE J82 standards, making it a precise, dimensionally consistent fastener suited for general mechanical assembly. The zinc finish provides basic corrosion resistance in indoor and protected environments. This screw ships in a minimum order quantity of 100 pieces, making it appropriate for production assembly, MRO replenishment, and field service kits maintained by electricians, HVAC technicians, plumbers, and mechanical contractors.\u003c\/p\u003e\n\u003cp\u003eThe 1508MSR is well-suited for light to medium-duty fastening applications in electrical panels, HVAC equipment enclosures, plumbing fixture brackets, and general mechanical assemblies where a 1\/4-28 fine thread pattern is specified. The round head profile distributes clamping load over a broad bearing surface and sits above the workpiece, making it easy to access with a standard flat-blade screwdriver. Fine thread engagement makes it appropriate for use in thinner materials or tapped holes where thread stripping risk must be minimized.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for secure engagement in tapped holes and thin-material applications\u003c\/li\u003e\n  \u003cli\u003eRound head with slotted drive for straightforward installation with a standard flat-blade screwdriver\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc finish for basic corrosion resistance in dry or protected environments\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.6.3 and SAE J82 dimensional standards for consistent fitment\u003c\/li\u003e\n  \u003cli\u003eSold in multiples of 100 pieces, suitable for production line use and bulk MRO inventory\u003c\/li\u003e\n  \u003cli\u003eNo washer — designed for direct head-to-workpiece bearing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard inch-series machine screw for any application requiring a 1\/4-28 UNF round head slotted fastener per ASME B18.6.3.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a correctly sized flat-blade screwdriver to prevent cam-out and slot damage. De-energize and lock out any electrical or mechanical equipment before fastener installation or removal in panel and equipment enclosure applications. Ensure the mating tapped hole or nut matches the 1\/4-28 UNF thread specification before driving. Do not over-torque; round head screws have a lower drive recess depth than socket head types and are more susceptible to slot damage under excessive torque.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF\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: Round\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: J82\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\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\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\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\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: 1508MSR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51723623465266,"sku":"1508MSR","price":1338.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/339b9659d4e280e7eac2bd40bf3e97ad.jpg?v=1788607125","url":"https:\/\/voomisupply.com\/products\/value-collection-1508msr-1-4-28-x-1-2-in-round-head-slotted-screw","provider":"Voomi Supply","version":"1.0","type":"link"}