{"product_id":"value-collection-211157p-flat-socket-cap-screw-5-16-18","title":"Value Collection 211157P Flat Socket Cap Screw 5\/16-18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 211157P is a flat socket cap screw designed for countersunk fastening applications in mechanical assemblies and structural connections. It features an 82-degree flat head with a 3\/16-inch hex socket drive and a 5\/16-18 UNC thread at 1\/2 inch overall length. The alloy steel construction is finished in black oxide for moderate corrosion resistance and a low-reflectance appearance. Fully threaded along the entire shank length, this screw delivers consistent clamping load across the engaged thread engagement zone. Machinists, millwrights, and maintenance technicians install this type of fastener where a flush or recessed head is required.\u003c\/p\u003e\n\u003cp\u003eThis flat socket cap screw is suited for use in machinery frames, fixture plates, tooling components, and equipment enclosures where a flush surface is necessary. The 5\/16-18 UNC thread form is one of the most common coarse-thread sizes in inch-series mechanical work, making this screw a standard choice across manufacturing, industrial maintenance, and fabrication environments. Its compact 1\/2-inch length is appropriate for thin material stacks or shallow tapped holes. This item is sold individually but requires a minimum order quantity of 100 pieces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head seats flush in standard countersunk holes per ASME\/ANSI B18.3\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch hex socket drive for use with standard Allen keys or hex bit drivers\u003c\/li\u003e\n  \u003cli\u003eFully threaded shank maximizes thread engagement in shallow tapped holes\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction provides high tensile strength consistent with ASTM F835\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish offers mild corrosion resistance and reduces light reflection\u003c\/li\u003e\n  \u003cli\u003eUNC 5\/16-18 thread form is widely compatible with standard inch-series tapped holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any standard 5\/16-18 UNC tapped hole requiring an 82-degree countersunk flat head fastener per ASME\/ANSI B18.3 and ASTM F835 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, millwrights, or maintenance technicians using a 3\/16-inch hex key or hex socket bit driver. Ensure the mating countersink is machined to 82 degrees to achieve full head seating. De-energize or lock out any equipment before installing or removing fasteners in live machinery per applicable OSHA lockout\/tagout procedures. Do not substitute an SAE or metric driver size, as improper fit will damage the socket recess.\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1\/2 inches (overall)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: 82-degree Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3; ASTM F835\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.014 pounds\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: 211157P\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692480397618,"sku":"211157P","price":3770.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/62f4b57f4af112013fd6d45aa42188df.jpg?v=1788298174","url":"https:\/\/voomisupply.com\/products\/value-collection-211157p-flat-socket-cap-screw-5-16-18","provider":"Voomi Supply","version":"1.0","type":"link"}