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The HILLMAN FASTENERS 831622 is a hex head cap screw supplied in a 50-piece pack. It features a 3/8-16 coarse thread profile and measures 1.5 inches in length. Constructed from stainless steel, it provides corrosion resistance suited for demanding mechanical and structural applications. The hex drive format accommodates standard wrenches and sockets. Plumbers, electricians, HVAC technicians, and general contractors reach for this fastener when securing equipment mounts, brackets, flanges, and structural assemblies where thread pullout resistance and environmental durability are required.
This screw is a standard 3/8-16 UNC coarse thread fastener commonly used in mechanical, HVAC, plumbing, and electrical trade work. It fits applications requiring a hex head drive for torque control with a wrench or socket. The stainless steel construction makes it appropriate for interior and exterior installations, wet environments, and locations where corrosion from moisture or chemical exposure is a concern. Supplied in a 50-count pack, it suits both single-job use and shop stock replenishment.
Designed as a standard 3/8-16 UNC coarse thread hex head cap screw suitable for use wherever that thread form and head style are specified in mechanical, HVAC, plumbing, and electrical installations.
Installation is performed by any trade technician using a standard hex wrench, open-end wrench, or socket set sized for a 3/8-16 hex head fastener. De-energize equipment and relieve system pressure before fastening components on live HVAC, plumbing, or electrical assemblies. Apply thread engagement of at least 1.5 times the fastener diameter into tapped metal for reliable clamping force. Follow applicable codes including NEC, IPC, and IFGC for fastener requirements in regulated assemblies.
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