{"product_id":"value-collection-48548-8-hex-socket-cap-screw-5-8-18-unf","title":"Value Collection -48548-8 Hex Socket Cap Screw 5\/8-18 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION -48548-8 is a partially threaded hex socket cap screw designed for high-strength fastening applications in mechanical, industrial, and trade service work. It carries a 5\/8-18 UNF thread size and measures 4 inches in length under the head. The screw is machined from alloy steel and finished with a black oxide coating for corrosion resistance. Drive engagement is achieved with a 1\/2 inch hex socket. It meets ASME\/ANSI B18.3 and ASTM A574 standards, making it a recognized choice for structural and precision fastening where dimensional and strength compliance matter.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for heavy-duty mechanical assemblies, equipment repair, and precision fastening in industrial settings. The fine 5\/8-18 UNF thread pitch provides stronger thread engagement and better resistance to loosening under vibration compared to coarse thread equivalents. Typical applications include machinery frames, hydraulic components, motor mounts, and structural assemblies where a recessed drive head and high clamping force are required. Installation is performed by millwrights, machinists, and maintenance technicians working across manufacturing and field service environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/8-18 UNF fine thread for high-strength engagement and vibration resistance\u003c\/li\u003e\n  \u003cli\u003e4 inches length under head with partial threading for grip-zone fastening\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction for high tensile and shear strength\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides moderate corrosion resistance and reduces light reflection\u003c\/li\u003e\n  \u003cli\u003e1\/2 inch hex drive socket for reliable, tool-driven torque application\u003c\/li\u003e\n  \u003cli\u003eCompliant with ASME\/ANSI B18.3 and ASTM A574 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard-fit fastener for mechanical assemblies requiring a 5\/8-18 UNF partially threaded hex socket cap screw per ASME\/ANSI B18.3 and ASTM A574 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists, millwrights, or maintenance technicians using a 1\/2 inch hex key or socket driver. Ensure the mating tapped hole is clean and free of debris before threading. Do not exceed the rated fastener torque for the alloy steel grade, and avoid cross-threading during initial engagement. Refer to applicable mechanical or equipment service documentation for torque specifications relevant to the assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-18 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially 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: 1\/2 inch\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\/ANSI 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\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: -48548-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51723807392050,"sku":"-48548-8","price":83.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3ce8746a32693b0e6167b4e61d2b9e33.jpg?v=1788608309","url":"https:\/\/voomisupply.com\/products\/value-collection-48548-8-hex-socket-cap-screw-5-8-18-unf","provider":"Voomi Supply","version":"1.0","type":"link"}