Value Collection D30165-4 Hex Head Cap Screw 7/8-9x4

Product Description

The VALUE COLLECTION D30165-4 is a 7/8-9 hex head cap screw designed for general industrial and mechanical fastening applications. Measuring 4 inches under the head with a 7/8-9 UNC thread pattern, this cap screw is partially threaded and manufactured from Grade 5 steel with a zinc-plated finish for basic corrosion resistance. It conforms to ASME B18.2.1 dimensional standards, ensuring consistent fit across standard tooling and hardware. Licensed tradespeople, millwrights, pipefitters, and mechanical contractors use this fastener where a reliable medium-strength hex cap screw is required in structural or equipment assembly work.

This fastener suits a wide range of industrial, commercial, and mechanical assembly scenarios where 7/8-9 UNC threading is specified. Partial threading keeps the unthreaded shank in the grip length, making it appropriate for bolted joint applications that require a shank to bear shear loads. The zinc finish provides light-duty corrosion protection suitable for indoor or sheltered environments.

Key Features

• 7/8-9 UNC thread size with 4-inch length under head
• Partially threaded shank for shear-bearing joint applications
• Grade 5 steel construction for medium-strength fastening
• Zinc-plated finish for basic corrosion resistance
• Conforms to ASME B18.2.1 dimensional standards
• Inch measurement system; standard hex head drive

Compatibility

Designed as a standard UNC hex head cap screw per ASME B18.2.1, compatible with any application specifying a 7/8-9 x 4-inch Grade 5 partially threaded fastener in the inch measurement system.

Installation Notes

Installation is performed with a standard hex wrench or socket matched to the 7/8-inch head size. Follow applicable torque specifications from the equipment manufacturer or relevant structural standards for Grade 5 fasteners. Ensure mating threads are clean and free of debris before installation. Do not exceed the rated grade strength by applying torque beyond design limits, and inspect threads for damage before reuse.