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The VALUE COLLECTION KP44118 is a 5/8-11 x 3 inch hex head cap screw manufactured from Grade 8 steel with a zinc-plated finish. It features partial threading along the shank and conforms to ASTM A354 BD standards, making it suitable for high-strength fastening applications in industrial, mechanical, and construction assemblies. The Unified National Coarse (UNC) thread form provides reliable engagement in standard tapped holes and nuts. This fastener is sold in a package of 25 and is commonly sourced by contractors, millwrights, maintenance technicians, and equipment assemblers who require a traceable, specification-grade bolt in quantity.
This screw is appropriate for use in structural connections, heavy equipment assembly, and mechanical clamping applications where a high-strength Grade 8 fastener with a corrosion-resistant coating is required. The zinc plating provides a base level of protection against oxidation in indoor or sheltered environments. Partial threading leaves a smooth shank section beneath the head, which is standard for applications requiring shear resistance or precise hole alignment before thread engagement begins.
Designed for use with standard 5/8-11 UNC threaded nuts, tapped holes, and hardware conforming to inch-system thread standards in industrial and mechanical applications.
Installation should be performed by qualified tradespeople using a properly sized hex socket or wrench matched to the bolt head. Ensure mating threads and bearing surfaces are clean and free of debris before assembly. Do not exceed the design load rating of the joint or substitute Grade 8 fasteners in applications requiring different specification grades without engineering review. Follow applicable mechanical and structural codes for torque sequencing and joint design.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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