{"product_id":"value-collection-40887-button-socket-cap-screw-1-2-13","title":"Value Collection 40887 Button Socket Cap Screw 1\/2-13","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 40887 is a button socket cap screw designed for applications where a low-profile head is required alongside high clamping strength. Sized at 1\/2-13 x 1-1\/2 inches with a fully threaded shank, it is manufactured from alloy steel and finished with a black oxide coating for moderate corrosion resistance. The 5\/16-inch hex socket drive accepts a standard Allen key or hex bit. Hardness is rated at 36-43 HRC, conforming to ASME B18.3 and ASTM F835 standards. This fastener is installed by machinists, maintenance technicians, and mechanical assemblers across industrial, OEM, and fabrication environments.\u003c\/p\u003e\u003cp\u003eThe 40887 button socket cap screw is suited for mechanical assemblies where a domed, low-profile head must sit flush or near-flush against a mating surface without protruding significantly. Typical applications include machine guards, brackets, enclosures, and structural panels where clearance is limited. The UNC thread form and Class 3A thread fit ensure consistent engagement in standard tapped holes. The black oxide finish provides a clean, non-reflective appearance and light surface protection in dry or mildly humid indoor environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLow-profile button head design for clearance-sensitive assemblies\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction rated at 36-43 HRC hardness\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating for light corrosion resistance and non-reflective finish\u003c\/li\u003e\n\u003cli\u003e5\/16-inch hex socket drive compatible with standard Allen keys and hex bits\u003c\/li\u003e\n\u003cli\u003eFully threaded 1\/2-13 UNC shank with Class 3A thread fit and right-hand direction\u003c\/li\u003e\n\u003cli\u003eMeets ASME B18.3 and ASTM F835 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard replacement or new-installation button socket cap screw for any application requiring a 1\/2-13 UNC fully threaded fastener in an alloy steel grade conforming to ASME B18.3 and ASTM F835.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 5\/16-inch hex key or hex socket bit. Ensure the mating tapped hole is clean and free of debris before threading. Power down or de-energize any equipment before accessing fastened assemblies in live systems. Follow applicable mechanical and structural codes for fastener preload and torque procedures relevant to the specific assembly.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Fit Class\u003c\/strong\u003e: 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.265 inches\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: 5\/16 inches\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\u003eHardness\u003c\/strong\u003e: 36-43 HRC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME B18.3 and ASTM F835\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: 40887\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51710248190258,"sku":"40887","price":34.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/31f673486bf2fea02574ccec9cc668ba.jpg?v=1788464776","url":"https:\/\/voomisupply.com\/products\/value-collection-40887-button-socket-cap-screw-1-2-13","provider":"Voomi Supply","version":"1.0","type":"link"}