Value Collection R52001294 Square Head Bolt 7/8-9 Unc

Product Description

The VALUE COLLECTION R52001294 is a square head bolt designed for heavy-duty fastening applications where a wrench or pipe wrench must grip the head securely. Threaded 7/8-9 UNC with a 3-1/2 inch length under the head, this bolt is manufactured from Grade 2 steel with an uncoated finish. The square head profile provides high torque transfer capability and is well-suited for use in wood construction, agricultural equipment, and industrial assemblies where a standard hex head may not be practical. Installation is typically performed by millwrights, ironworkers, or general contractors working in structural or equipment-mounting applications.

This bolt is used in residential, commercial, and agricultural settings wherever a large-diameter coarse-thread fastener with a square head is required. The 7/8-9 UNC thread is a standard coarse unified thread designation, making hardware and nut sourcing straightforward. Common applications include timber framing connections, heavy equipment mounting, and structural steel assemblies. The uncoated finish is appropriate for indoor or dry-environment use, or where a coating will be applied in the field.

Key Features

• Square head profile for high-torque wrench engagement, including pipe wrench use
• 7/8-9 UNC coarse thread for reliable engagement with standard heavy-duty nuts
• 3-1/2 inch length under head for medium-depth fastening applications
• Grade 2 steel construction meets general-purpose structural fastening requirements
• Uncoated finish suits dry-environment installations or field-coated assemblies
• Conforms to ANSI/ASME B18.2.1 dimensional standards

Compatibility

Designed as an OEM-style replacement or direct-use fastener compatible with any application requiring a 7/8-9 UNC square head bolt per ANSI/ASME B18.2.1 specifications.

Installation Notes

Installation is typically performed by a qualified tradesperson using a wrench, pipe wrench, or adjustable wrench sized for the square head. Always use a properly rated 7/8-9 UNC nut and washer for the application load requirements. Torque to the value specified by the governing design specification or structural drawing for the assembly. Do not use in applications requiring a higher grade bolt without verifying that Grade 2 meets the structural requirements.