Value Collection 97178 Hex Cap Screw 3/4-10 X 3.5 in Grade 5 25pk

Product Description

The VALUE COLLECTION 97178 is a 3/4-10 x 3.5-inch hex head cap screw manufactured from Grade 5 steel with an uncoated finish. Partially threaded along the shank, it uses a Unified National Coarse (UNC) thread form and conforms to ASME B18.2.1 dimensional standards. This fastener is sized for high-load structural and mechanical connections where a coarse-thread, medium-strength steel cap screw is specified. It is sold in packs of 25, making it practical for both single-job use and recurring maintenance tasks. Maintenance mechanics, pipefitters, millwrights, and general contractors regularly specify this screw type for equipment mounting, structural steel assembly, and flanged connections.

This cap screw is suited for general industrial, commercial, and mechanical applications where Grade 5 tensile strength is required and a fully engaged nut or tapped hole accepts a 3/4-10 UNC thread. Typical install scenarios include equipment bases, machinery frames, structural steel connections, and heavy-duty fastening applications where a partially threaded shank is preferred to allow shear load transfer through the unthreaded grip area.

Key Features

• 3/4-10 UNC thread size with 3.5-inch length under head
• Grade 5 steel construction for medium-strength mechanical applications
• Partially threaded shank allows shear load through the unthreaded grip section
• Uncoated finish suitable for dry or painted-over installations
• Meets ASME B18.2.1 dimensional standard for hex head cap screws
• Sold in a 25-piece pack to support job-site quantities

Compatibility

Designed as a standard 3/4-10 UNC hex head cap screw for use with any tapped hole, hex nut, or coupling nut that accepts a 3/4-10 Unified National Coarse thread per ASME B18.2.1.

Installation Notes

Installation is performed by qualified mechanics, pipefitters, or structural tradespeople using standard hex wrenches or impact tooling sized for a 3/4-inch hex cap screw head. Verify thread engagement depth and joint clamping requirements against the applicable engineering specification before final torque. Do not mix Grade 5 fasteners with Grade 8 or metric hardware in the same joint without engineering review. Inspect threads for damage before installation and replace any fastener showing deformation or corrosion.