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The VALUE COLLECTION D39056 is a Grade 8 steel hex head cap screw sized 3/8-16 x 1-1/2 inches, partially threaded with a Unified National Coarse (UNC) thread form. Built to ASME B18.2.1 dimensional standards, it is finished with zinc yellow dichromate for corrosion resistance in demanding fastening applications. The hex drive head allows installation with standard wrenches or sockets. This fastener suits mechanical, structural, and equipment assembly work where high-strength fasteners are required.
This screw is used in general industrial, mechanical, and light structural assembly applications where Grade 8 strength and a partial thread grip are specified. The zinc yellow dichromate finish provides moderate corrosion protection, making it appropriate for indoor and semi-exposed environments. It is commonly installed by maintenance technicians, millwrights, pipefitters, and other trade professionals who require a high-strength inch-series cap screw meeting ASME B18.2.1 standards.
Designed as a standard inch-series hex head cap screw for use in any application requiring a 3/8-16 UNC thread and 1-1/2 inch length under head. Compatible with standard 3/8-16 inch-series hex nuts, flat washers, and tapped holes conforming to UNC thread standards.
Install using a standard hex wrench, combination wrench, or socket set sized for a 3/8-inch hex head cap screw. Ensure mating threads and tapped holes are clean and free of debris before assembly. Torque to the value specified in the applicable engineering or equipment documentation for Grade 8 fasteners of this size. Do not mix inch-series and metric fasteners in the same joint.
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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