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The VALUE COLLECTION M74255662 is a partially threaded hex head cap screw designed for general-purpose fastening applications. It features a 5/8-11 Unified National Coarse (UNC) thread and a 7.5-inch length under head, making it suited for through-bolting and structural assemblies where a longer grip length is needed. Manufactured from Grade 2 steel with a zinc-plated finish, the fastener meets ASME B18.2.1 and SAE J429 standards. The zinc coating provides basic corrosion resistance for indoor and sheltered environments. The partial thread configuration allows the unthreaded shank to bear shear loads, which is common in mechanical and structural connections.
This hex head cap screw is used in a wide range of trade and industrial applications including HVAC equipment mounting, mechanical equipment frames, structural steel connections, plumbing support brackets, and general maintenance work. The 5/8-11 thread size is a standard coarse-thread dimension compatible with common nuts, washers, and tapped holes of the same specification. It is appropriate for residential and light commercial mechanical installations where Grade 2 carbon steel strength meets application requirements.
Designed as a standard 5/8-11 UNC hex head cap screw compatible with matching Grade 2 or higher hex nuts, flat washers, and lock washers of the same thread specification per ASME B18.2.1.
Installation is performed by maintenance technicians, millwrights, and trade professionals using standard hex wrenches or socket sets sized for a 5/8-inch hex head. Always verify that the mating nut or tapped hole matches the 5/8-11 UNC thread specification before installation. De-energize and isolate any equipment before fastening into mechanical assemblies. Do not use zinc-plated fasteners in continuously wet or submerged environments without additional corrosion protection.
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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