Value Collection D30165-5 Hex Head Cap Screw 7/8-9 X 5 in

Product Description

The VALUE COLLECTION D30165-5 is a 7/8-9 UNC hex head cap screw with a 5-inch length under head, manufactured from Grade 5 steel with a zinc-plated finish. It features partial threading along the shank, consistent with standard fastener design for structural clamping applications. The zinc plating provides a baseline level of corrosion resistance suitable for indoor and sheltered installations. This screw conforms to ASME B18.2.1 dimensional standards, making it a reliable choice for mechanical assemblies, equipment mounting, and general trade fabrication work. Plumbers, HVAC technicians, electricians, and millwrights routinely use Grade 5 fasteners of this size when assembling equipment bases, hangers, and structural supports.

This cap screw is suited for medium-duty bolted connections in a wide range of commercial and industrial applications. Typical uses include securing equipment frames, mounting brackets, pipe hangers, electrical enclosures, and mechanical assemblies where a standard Inch-series UNC thread pattern is specified. The 7/8-9 thread size and 5-inch length make it appropriate for thicker material stacks that require a longer grip length with a partially threaded shank to ensure proper bearing and clamping force.

Key Features

• 7/8-9 UNC thread form per standard Inch series specifications
• 5-inch length under head for use with thicker material stacks
• Grade 5 steel construction for medium-strength bolted connections
• Zinc-plated finish for baseline corrosion resistance in sheltered environments
• Partially threaded shank supports proper clamping and bearing load distribution
• Conforms to ASME B18.2.1 dimensional standards

Compatibility

Designed as a standard Inch-series UNC hex head cap screw for use in any application specifying a 7/8-9 x 5-inch Grade 5 partially threaded fastener per ASME B18.2.1.

Installation Notes

Installation should be performed by a qualified tradesperson using an appropriately sized wrench or socket. Always ensure mating threads are clean and free of debris before installation. Do not exceed the torque specifications listed in the engineering documentation for the assembly being fastened. Grade 5 fasteners should not be substituted in applications requiring Grade 8 or higher strength ratings without engineering approval.