{"product_id":"value-collection-mp39461-hex-head-cap-screw-5-8-18x6-gr8","title":"Value Collection MP39461 Hex Head Cap Screw 5\/8-18x6 Gr8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION MP39461 is a partially threaded hex head cap screw manufactured from Grade 8 steel with a zinc yellow dichromate finish. It measures 5\/8-18 thread size with a 6-inch length under head, conforming to ASME B18.2.1 dimensional standards. Grade 8 steel delivers high tensile strength suitable for heavy-duty fastening applications. The zinc yellow dichromate coating provides corrosion resistance in exposed or mildly harsh environments. This fastener is installed by mechanics, millwrights, and general contractors wherever a high-strength inch-series hex cap screw is required.\u003c\/p\u003e\u003cp\u003eThis screw is suited for structural assemblies, machinery mounting, equipment frames, and industrial fabrication work where high-strength fasteners are specified. The UNF thread form provides fine-thread engagement, which is commonly preferred in applications requiring tighter torque control or where vibration resistance is a factor. The partial thread length allows for a smooth shank section beneath the head, typical for through-bolt and clamping applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 8 steel construction for high tensile and proof load strength\u003c\/li\u003e\n\u003cli\u003eZinc yellow dichromate finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003e5\/8-18 UNF thread  -  fine thread series for precise engagement\u003c\/li\u003e\n\u003cli\u003e6-inch length under head with partial threading\u003c\/li\u003e\n\u003cli\u003eConforms to ASME B18.2.1 dimensional standard\u003c\/li\u003e\n\u003cli\u003eInch system of measurement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series hex head cap screw for use in any application specifying a 5\/8-18 UNF Grade 8 fastener per ASME B18.2.1.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified mechanics or tradespeople using appropriate torque equipment calibrated for Grade 8 fastener specifications. Always verify that the mating nut or tapped hole uses the matching 5\/8-18 UNF thread form before assembly. Apply thread lubricant or anti-seize only if specified by the equipment manufacturer, as lubrication affects torque-tension relationships. Follow all applicable fastener standards and equipment service documentation when determining final torque values.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Yellow Dichromate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B18.2.1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\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: MP39461\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":52099151561010,"sku":"MP39461","price":69.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/31abcd27c37d452527ef1d2c2a284abc.jpg?v=1790068065","url":"https:\/\/voomisupply.com\/products\/value-collection-mp39461-hex-head-cap-screw-5-8-18x6-gr8","provider":"Voomi Supply","version":"1.0","type":"link"}