{"product_id":"holo-krome-86150-hex-socket-cap-screw-4-40-unc-alloy-steel","title":"Holo-krome 86150 Hex Socket Cap Screw 4-40 Unc Alloy Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HOLO-KROME 86150 is a hex socket cap screw designed for precision fastening in mechanical assemblies, tooling fixtures, and equipment fabrication. It features a 4-40 UNC thread and a 3\/16-inch length under the head, with full threading along the shank. The drive is a 3\/32-inch internal hex socket, driven with a standard hex key or Allen driver. Constructed from alloy steel with a black oxide finish, this screw delivers solid tensile strength and moderate corrosion resistance in controlled environments. Mechanical contractors, machinists, and equipment technicians are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for light-duty precision applications where space is limited and a low-profile fastener is required. Common installation scenarios include small mechanical assemblies, instrument panels, electrical enclosure hardware, and HVAC component mounting where fine-thread fasteners are specified. The 4-40 UNC thread is a standard fine-pitch size used widely across industrial and commercial equipment. Minimum order quantity is 100 pieces per order.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 UNC thread for precision fitment in standard fine-thread tapped holes\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch length under head for low-profile, space-constrained installations\u003c\/li\u003e\n  \u003cli\u003eFully threaded shank provides maximum thread engagement across the entire fastener length\u003c\/li\u003e\n  \u003cli\u003e3\/32-inch hex socket drive compatible with standard hex keys and Allen drivers\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASME B18.3 and ASTM A574 fastener standards\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating provides a non-reflective finish and mild corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard-geometry replacement or specification fastener for any application requiring a 4-40 UNC hex socket cap screw with a 3\/16-inch length under head, conforming to ASME B18.3 and ASTM A574.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, mechanical technicians, or qualified tradespeople using a 3\/32-inch hex key or ball-end Allen driver. Ensure the receiving tapped hole is clean and free of debris before driving the fastener. Do not overtighten in thin-walled or soft-material tapped holes, as the fine 4-40 thread is susceptible to stripping. Follow applicable equipment manufacturer torque guidelines for this thread size when specified.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\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\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\u003eFastener Standard\u003c\/strong\u003e: ASME B18.3, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.001 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: 86150\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51739602190642,"sku":"86150","price":3190.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3fda6db07414a1d1b939ca6e2884796d.jpg?v=1788816811","url":"https:\/\/voomisupply.com\/products\/holo-krome-86150-hex-socket-cap-screw-4-40-unc-alloy-steel","provider":"Voomi Supply","version":"1.0","type":"link"}