Value Collection 97202 Hex Head Cap Screw 7/8-9 X 4-1/2 in Grade 5

Product Description

The VALUE COLLECTION 97202 is a partially threaded hex head cap screw designed for heavy-duty fastening applications. It features a 7/8-9 UNC thread profile and measures 4-1/2 inches under the head. Manufactured from Grade 5 steel in an uncoated finish, this screw meets ASME B18.2.1 dimensional standards. It is suited for structural assemblies, machinery mounting, and mechanical joints where a strong, reliable fastener is required. Installation is performed using a standard hex wrench or socket drive matched to the hex head size.

This cap screw is a practical choice for industrial, commercial, and trade applications involving steel-to-steel or steel-to-plate connections. Partial threading allows the unthreaded shank to act as a shoulder or locating feature in bolted joints, making it appropriate for through-bolt and clamped-flange configurations. Machinists, millwrights, and general maintenance technicians commonly specify this fastener for equipment assembly and repair work requiring UNC-threaded hardware at this diameter and length.

Key Features

• 7/8-9 UNC thread — coarse-pitch profile for reliable engagement in steel and cast iron
• 4-1/2 inches under-head length for deep-reach fastening applications
• Grade 5 steel construction provides minimum 120,000 psi proof load strength per SAE specification
• Partially threaded shank allows use as a shoulder bolt or locating fastener
• Uncoated finish — suitable for applications where plating is not required or where field coating will be applied
• Conforms to ASME B18.2.1 dimensional standards for hex head cap screws

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 7/8-9 UNC tapped hole or nut meeting ASME B18.2.1 specifications.

Installation Notes

Installation should be performed by a qualified technician familiar with fastener torque requirements for Grade 5 hardware at this diameter. Always confirm thread engagement depth and joint clamping requirements before final assembly. Do not mix metric and inch hardware in the same joint. Follow applicable machinery safety standards and de-energize or lock out equipment before performing fastener work on live machinery.