Value Collection R52001059 Square Head Bolt 1/4-20 Unc

Product Description

The VALUE COLLECTION R52001059 is a square head bolt designed for general fastening applications in mechanical, structural, and industrial assemblies. It features a 1/4-20 UNC thread with a 1-1/2 inch length under the head, manufactured from Grade 2 uncoated steel. The square head profile allows wrench or pipe wrench engagement in tight spaces where a hex driver cannot be used. This bolt conforms to ANSI/ASME B18.2.1 dimensional standards, making it a reliable choice for tradespeople who need consistent, code-referenced fasteners on the job.

This bolt is suited for light-duty to medium-duty fastening tasks in HVAC equipment mounting, plumbing fixture framing, electrical enclosure assembly, and general mechanical work. The UNC thread form is the most common inch-series thread standard in North American trade applications, ensuring broad compatibility with standard nuts, threaded inserts, and tapped holes. The uncoated steel finish is appropriate for dry interior environments where corrosion resistance is not a primary requirement.

Key Features

• 1/4-20 UNC thread for compatibility with standard inch-series hardware
• 1-1/2 inch length under head for common through-bolt and tapped-hole applications
• Square head profile allows engagement with adjustable wrenches and pipe wrenches
• Grade 2 steel construction meets ANSI/ASME B18.2.1 dimensional standards
• Uncoated finish suitable for dry interior installations

Compatibility

Designed as a standard 1/4-20 UNC square head bolt for use with any 1/4-20 inch-series nut, threaded insert, or tapped hole conforming to ANSI/ASME B18.2.1 specifications.

Installation Notes

Install using an adjustable wrench or appropriately sized open-end wrench on the square head. Power down or de-energize any equipment before fastening components in electrical or HVAC panels. Verify that the mating nut or tapped hole is also 1/4-20 UNC before installation. Do not use in outdoor or high-moisture environments without appropriate corrosion-resistant hardware substitutes.