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The VALUE COLLECTION 402254BR is a 3/4-10 UNC hex head cap screw measuring 3-1/2 inches under the head. Manufactured from Grade 2 steel with a bright, uncoated finish, this fastener is partially threaded and sized for standard inch-system bolted assemblies. It is a general-purpose structural fastener used across a broad range of mechanical, plumbing, HVAC equipment mounting, and industrial maintenance applications. Licensed tradespeople and maintenance technicians reach for Grade 2 hex cap screws when moderate-strength, non-coated fasteners are required for interior or non-corrosive environments.
This fastener is suited for use in light-to-medium structural connections, equipment frames, brackets, and mechanical assemblies where UNC thread engagement and a bearing-surface hex head are specified. The partial threading allows the unthreaded shank to bear shear loads in clearance-hole applications, making it a practical choice for through-bolted connections in ductwork supports, equipment bases, and similar trade installations. Minimum order quantity is 10 pieces; package quantity is 1.
Designed for use with 3/4-10 UNC standard hex nuts, flat washers, and lock washers in inch-system bolted assemblies across HVAC, plumbing, electrical, and general mechanical applications.
Installation is performed by maintenance technicians, millwrights, or licensed tradespeople using standard open-end, box-end, or socket wrenches sized for a 3/4-inch hex head. Ensure mating threads and bearing surfaces are clean and free of debris before installation. Grade 2 fasteners are not rated for high-strength or critical structural connections — consult applicable codes or engineering specifications when load requirements are uncertain. Do not substitute this fastener in applications specifying Grade 5, Grade 8, or higher-strength classifications.
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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