{"product_id":"value-collection-40886-button-cap-screw-1-2-13-alloy-steel-25pk","title":"Value Collection 40886 Button Cap Screw 1\/2-13 Alloy Steel 25pk","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 40886 is a fully threaded button socket cap screw designed for mechanical fastening applications requiring a low-profile head and high clamping strength. Sized at 1\/2-13 thread with a 1-1\/4 inch length under head, it is driven by a 5\/16 inch hex socket. Constructed from alloy steel with a black oxide finish, this fastener meets ANSI\/ASME B18.3 and ASTM F835 standards and carries a hardness rating of 36-43 HRC. Each package contains 25 screws. Machinists, millwrights, and mechanical contractors install this type of fastener in structural assemblies, machine frames, and equipment mounting applications.\u003c\/p\u003e\u003cp\u003eThis button socket cap screw is suited for industrial and commercial mechanical assemblies where a low-profile button head is required to clear adjacent components or where flush-style fastening is preferred. The UNC thread standard makes it compatible with standard inch-series tapped holes at 1\/2-13 thread pitch. Right-hand thread direction follows standard installation practice. The black oxide finish provides mild corrosion resistance in dry or lightly lubricated environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2-13 UNC fully threaded, right-hand thread, Thread Fit Class 3A\u003c\/li\u003e\n\u003cli\u003eButton head profile with 5\/16 inch hex socket drive for low-clearance installations\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction rated at 36-43 HRC hardness for high-strength fastening\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish for mild corrosion resistance\u003c\/li\u003e\n\u003cli\u003eMeets ANSI\/ASME B18.3 and ASTM F835 fastener standards\u003c\/li\u003e\n\u003cli\u003eSold in a package of 25 screws\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard fitment fastener for inch-series 1\/2-13 UNC tapped holes in mechanical assemblies, machine frames, and structural mounting applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed with a 5\/16 inch hex key or socket driver. Ensure the mating tapped hole is clean and free of debris before driving the screw. De-energize or lock out any equipment before fastener service per applicable OSHA lockout\/tagout procedures. Do not exceed the fastener's rated hardness range by substituting with lower-grade hardware in high-load applications.\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\u003eLength Under Head\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Button\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\u003eHead Height\u003c\/strong\u003e: 0.265 inches\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\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: ANSI\/ASME B18.3, ASTM F835\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 25\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: 40886\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698846630194,"sku":"40886","price":31.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/33adc5e88f55a40e26db2e5f24c4a012.jpg?v=1788368814","url":"https:\/\/voomisupply.com\/products\/value-collection-40886-button-cap-screw-1-2-13-alloy-steel-25pk","provider":"Voomi Supply","version":"1.0","type":"link"}