{"product_id":"value-collection-3172msf-5-16-18-x-4-5-in-flat-head-slotted-screw","title":"Value Collection 3172MSF 5\/16-18 X 4.5 in Flat Head Slotted Screw","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 3172MSF is a 5\/16-18 unified coarse thread machine screw with a flat head and slotted drive, manufactured from steel with a zinc finish. At 4.5 inches overall length, this fastener is suited for general-purpose mechanical assembly where a flush or countersunk surface is required. It conforms to ASME B18.6.3 and SAE J82 standards, making it appropriate for structural and mechanical applications where dimensional consistency and material grade compliance matter. Tradespeople and maintenance technicians use this type of fastener in equipment panels, enclosures, and mechanical assemblies across HVAC, electrical, and general industrial settings.\u003c\/p\u003e\n\u003cp\u003eThis screw is intended for use in applications requiring a 5\/16-18 UNC thread engagement. The flat head profile sits flush with or below the mating surface when installed in a countersunk hole, which is common in sheet metal panels, equipment housings, and fabricated assemblies. The zinc finish provides a baseline level of corrosion resistance suitable for indoor and light-duty environments. Sold individually per package, with a minimum order quantity of 50 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 unified coarse thread for broad compatibility with standard tapped holes\u003c\/li\u003e\n  \u003cli\u003eFlat head profile for flush or countersunk installation in panels and housings\u003c\/li\u003e\n  \u003cli\u003eSlotted drive compatible with standard flat-blade screwdrivers\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc finish for baseline corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B18.6.3 and SAE J82 dimensional and material grade standards\u003c\/li\u003e\n  \u003cli\u003e4.5 inches overall length suits deeper thread engagement or thicker assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any application requiring a 5\/16-18 UNC flat head slotted machine screw at 4.5 inches overall length, including mechanical assemblies, equipment enclosures, and fabricated panels where countersunk fasteners are specified.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by maintenance technicians, electricians, or equipment assemblers using a flat-blade screwdriver or slotted bit driver. Ensure the mating hole is properly tapped to 5\/16-18 UNC thread form and that a countersink is machined to the appropriate angle for a flat head screw before driving. De-energize and lock out any equipment before servicing panels or enclosures where these fasteners are used. Do not over-torque; follow the torque specifications listed in the equipment manufacturer's service documentation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Flat\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\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, 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\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 50\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: 3172MSF\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51700125892914,"sku":"3172MSF","price":5361.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7d944d9869b79f78bd4b534b26c20a69.jpg?v=1788386341","url":"https:\/\/voomisupply.com\/products\/value-collection-3172msf-5-16-18-x-4-5-in-flat-head-slotted-screw","provider":"Voomi Supply","version":"1.0","type":"link"}