Value Collection R52001295 Square Head Bolt 7/8-9 Unc

Product Description

The VALUE COLLECTION R52001295 is a square head bolt designed for general fastening applications where a wrench-friendly head profile is required. The bolt features a 7/8-9 UNC thread and a 4-inch length under head, making it suitable for structural assemblies, machinery mounts, and heavy-duty connections. Manufactured from Grade 2 steel with an uncoated finish, this bolt meets ANSI/ASME B18.2.1 dimensional standards. Tradespeople and maintenance professionals select square head bolts when a four-sided head profile is necessary for pipe wrenches or similar tools to achieve adequate torque without a standard hex arrangement.

This bolt is well suited for industrial maintenance, construction framing, agricultural equipment, and utility installations where square head fasteners are specified. The 7/8-9 UNC coarse thread form provides reliable engagement in steel and cast iron assemblies. The uncoated steel finish is appropriate for interior or protected applications. Contractors, millwrights, and maintenance technicians working on legacy machinery, timber connections, or utility structures are the primary installers of this fastener type.

Key Features

• 7/8-9 UNC coarse thread for strong engagement in steel and cast iron
• 4-inch length under head accommodates moderate to thick material stacks
• Square head profile compatible with pipe wrenches and adjustable wrenches
• Grade 2 steel construction meets ANSI/ASME B18.2.1 dimensional standards
• Uncoated finish suitable for dry or protected indoor environments

Compatibility

Designed as a standard 7/8-9 UNC square head bolt per ANSI/ASME B18.2.1, suitable for use wherever this thread size and head style are called out in fastener specifications.

Installation Notes

Installation is typically performed by millwrights, ironworkers, or maintenance technicians. Use an appropriately sized pipe wrench or adjustable wrench on the square head and a matching 7/8-9 UNC nut and washer on the opposing side. Follow project drawings or engineer specifications for torque requirements and joint preload. Inspect threads and mating surfaces for damage or contamination before installation.