{"product_id":"holo-krome-730002220-hex-socket-cap-screw-1-2-20-unf","title":"Holo-krome 730002220 Hex Socket Cap Screw 1\/2-20 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HOLO-KROME 730002220 is a hex socket cap screw designed for high-strength fastening applications requiring a recessed drive. It features a 1\/2-20 UNF thread and measures 3\/4 inches in length under the head. The screw is fully threaded and driven by a 3\/8-inch hex key. Constructed from alloy steel with a black oxide finish, it delivers corrosion resistance and a clean appearance suited for both structural and mechanical assembly work. Installers working in HVAC equipment assemblies, mechanical brackets, and equipment panels will find this fastener a direct fit for precision-threaded applications where torque retention matters.\u003c\/p\u003e\n\u003cp\u003eThis fastener is used in residential and commercial mechanical installations where a flush or low-profile cap head is required. It is commonly found in equipment enclosure assemblies, mounting brackets, and structural hardware applications across HVAC, electrical, and plumbing trades. The 1\/2-20 UNF fine thread pitch provides tighter thread engagement and improved resistance to loosening under vibration, making it appropriate for dynamic mechanical environments. Sold in minimum order quantities of 50 units per pack.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2-20 UNF fully threaded fine-pitch thread for precise engagement\u003c\/li\u003e\n  \u003cli\u003e3\/4-inch length under head for controlled fastening depth\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 high-strength requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating provides mild corrosion resistance and reduces light reflection\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch hex socket drive for standard Allen key or hex bit installation\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.3 socket cap screw dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or stock fastener for any application requiring a 1\/2-20 UNF fully threaded hex socket cap screw conforming to ASME B18.3 and ASTM A574 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a 3\/8-inch hex key or Allen-head bit driver. Power down or de-energize all equipment before accessing fastened assemblies. Ensure mating threads are clean and free of debris before driving the fastener to prevent cross-threading. Follow applicable equipment manufacturer torque specifications and relevant mechanical codes for the trade application.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\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\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME B18.3, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: HOLO-KROME\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 730002220\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51728420438322,"sku":"730002220","price":6505.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1fb65251cfa69e7338b661d288c2ad58.jpg?v=1788690990","url":"https:\/\/voomisupply.com\/products\/holo-krome-730002220-hex-socket-cap-screw-1-2-20-unf","provider":"Voomi Supply","version":"1.0","type":"link"}