{"product_id":"value-collection-mpkp44122-hex-cap-screw-5-8-11-x-4-in-grade-8","title":"Value Collection MPKP44122 Hex Cap Screw 5\/8-11 X 4 in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION MPKP44122 is a Grade 8 steel hex head cap screw sized 5\/8-11 x 4 inches, finished with a zinc plating for corrosion resistance. It features partial threading along the shank and conforms to ASTM A354 BD standards, making it suitable for high-strength structural and mechanical fastening applications. The Unified National Coarse (UNC) thread pattern ensures broad hardware compatibility. Electricians, pipefitters, HVAC technicians, and general trade professionals use this fastener when assembling equipment frames, mounting structural components, or securing heavy-duty brackets in commercial and industrial settings.\u003c\/p\u003e\u003cp\u003eThis fastener is sold in packages of 10 and is well suited for trade applications requiring a high-strength, partially threaded hex cap screw. The 5\/8-11 UNC thread size is commonly found in structural steel connections, equipment mounting, and mechanical assemblies across HVAC, plumbing, and electrical trade work. Its zinc-plated finish provides moderate protection against oxidation in indoor and light-duty outdoor environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 8 steel construction meets ASTM A354 BD for high-strength fastening\u003c\/li\u003e\n\u003cli\u003e5\/8-11 UNC thread pattern for broad tool and hardware compatibility\u003c\/li\u003e\n\u003cli\u003e4-inch length under head with partial threading along the shank\u003c\/li\u003e\n\u003cli\u003eZinc-plated finish provides corrosion resistance for general trade use\u003c\/li\u003e\n\u003cli\u003eSold in a package of 10 units per order\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 5\/8-11 UNC hex head cap screw suitable for use in structural, mechanical, and equipment-mounting applications where Grade 8 strength and ASTM A354 BD compliance are required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified trade professionals familiar with proper fastener torque procedures for Grade 8 hardware. Always ensure mating threads are clean and free of debris before installation. Use an appropriately rated hex wrench or socket to drive the fastener, and follow applicable code requirements such as AISC or equipment manufacturer guidelines for torque specifications. Do not mix Grade 8 fasteners with lower-grade nuts or washers.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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-Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASTM A354 BD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10\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: MPKP44122\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690739564850,"sku":"MPKP44122","price":48.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e9d01cba018304b3a1039b3dcd2cd12d.jpg?v=1788274724","url":"https:\/\/voomisupply.com\/products\/value-collection-mpkp44122-hex-cap-screw-5-8-11-x-4-in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}