{"product_id":"holo-krome-640000170-button-socket-cap-screw-8-32","title":"Holo-krome 640000170 Button Socket Cap Screw 8-32","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HOLO-KROME 640000170 is a button socket cap screw designed for threaded fastening applications requiring a low-profile head and high tensile strength. This screw features a hex socket drive in 3\/32-inch size and a 5\/16-inch length under the head, with fully threaded 8-32 UNC right-hand threads at a 3A fit class. The button head style provides a domed, low-profile appearance suited to recessed or flush-mount assemblies. Constructed from alloy steel with a black oxide finish, it meets ANSI\/ASME B18.3 and ASTM F835 standards. Hardness is rated at 38 HRC. Machinists, maintenance technicians, and mechanical assembly professionals are the primary installers.\u003c\/p\u003e\u003cp\u003eThis screw is suited for light-duty to medium-duty mechanical assemblies where a smooth, low-profile fastener head is required and access allows a hex key or T-handle driver. Common applications include machine panels, brackets, guards, enclosures, and precision equipment frames. The black oxide finish provides mild corrosion resistance in dry or lightly oiled indoor environments. The 8-32 thread size is widely used across instrumentation, HVAC equipment panels, and electrical enclosure hardware. Minimum order quantity is 100 pieces; package quantity is 1.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eButton head style with 0.312-inch head diameter and 0.087-inch head height for low-profile installations\u003c\/li\u003e\n\u003cli\u003eHex socket drive, 3\/32-inch size, compatible with standard hex keys and T-handle drivers\u003c\/li\u003e\n\u003cli\u003eFully threaded 8-32 UNC right-hand thread at 3A fit class for precise thread engagement\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction rated at 38 HRC hardness for reliable load performance\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish for mild corrosion resistance in indoor environments\u003c\/li\u003e\n\u003cli\u003eMeets ANSI\/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 8-32 UNC button socket cap screw replacement or new-installation fastener for threaded assemblies conforming to ANSI\/ASME B18.3 specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 3\/32-inch hex key or appropriate T-handle driver. Power down or de-energize any equipment before fastening into electrical enclosures or control panels. Do not over-torque button head cap screws, as the lower head profile reduces drive engagement compared to standard socket head styles. Follow applicable ANSI or equipment manufacturer torque guidelines for the 8-32 thread class.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 8-32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNRC\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\u003eHead Type\u003c\/strong\u003e: Button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 0.312 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.087 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: 3\/32 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: 38 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 Weight\u003c\/strong\u003e: 0.06 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: HOLO-KROME\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 640000170\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51731947323698,"sku":"640000170","price":3222.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/eb90690263940c2af6044cd81bf1eae0.jpg?v=1788737079","url":"https:\/\/voomisupply.com\/products\/holo-krome-640000170-button-socket-cap-screw-8-32","provider":"Voomi Supply","version":"1.0","type":"link"}