Value Collection R52001220 Square Head Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION R52001220 is a square head bolt designed for general fastening applications in structural, mechanical, and industrial assemblies. It features a 1/2-13 UNC thread size and a 2-inch length under head, made from Grade 2 steel with an uncoated finish. The square head profile allows for wrench engagement from multiple sides, which is useful in confined spaces or where a standard hex head cannot be accessed. This fastener meets ANSI/ASME B18.2.1 dimensional standards and is a practical choice for maintenance, repair, and fabrication work performed by millwrights, ironworkers, pipefitters, and general contractors.

This bolt is suited for use in light-to-medium structural connections, equipment mounting, and general fabrication tasks across residential, commercial, and industrial settings. Its uncoated steel finish is appropriate for interior applications or where a secondary coating will be applied on-site. The 1/2-13 UNC thread is a standard coarse thread pitch, compatible with commonly stocked hex nuts, lock nuts, and washers of the same thread designation.

Key Features

• 1/2-13 UNC coarse thread for broad compatibility with standard hardware
• 2-inch length under head suits medium-depth fastening applications
• Square head profile allows multi-side wrench engagement in tight access areas
• Grade 2 steel construction meets ANSI/ASME B18.2.1 dimensional standards
• Uncoated finish suitable for interior use or pre-coating applications

Compatibility

Designed as a standard-fit replacement or stock fastener for any assembly requiring a 1/2-13 UNC square head bolt with a 2-inch length under head per ANSI/ASME B18.2.1 specifications.

Installation Notes

Installation is typically performed by qualified tradespeople using an appropriately sized open-end, box-end, or adjustable wrench to engage the square head. Follow applicable ANSI and project-specific torque requirements for Grade 2 fasteners in the intended application. Verify thread engagement depth and use appropriate washers and nuts rated for the same grade and thread class. Do not use impact tools at full torque settings on Grade 2 hardware without confirming the joint specification.