Value Collection R52001266 Square Head Bolt 5/8-11 Unc

Product Description

The VALUE COLLECTION R52001266 is a square head bolt designed for general fastening applications in structural, mechanical, and industrial assemblies. It features a 5/8-11 UNC thread size and measures 5 inches in length under the head. Manufactured from Grade 2 steel with an uncoated finish, this bolt meets ANSI/ASME B18.2.1 dimensional standards. The square head profile allows positive wrench engagement and is well suited for applications where a wrench must grip in tight or awkward spaces. Installers working in fabrication, construction framing, and mechanical assembly rely on this style of fastener where a standard hex head is not preferred or specified.

This bolt is used across a range of trade and industrial applications including structural steel connections, machinery mounting, HVAC equipment framing, and plumbing fixture support. The 5/8-11 UNC coarse thread provides reliable engagement in standard tapped holes and nuts. The uncoated steel finish is appropriate for interior, dry, or protected environments where corrosion exposure is limited. Typical installers include ironworkers, pipefitters, millwrights, and general contractors working on light structural or mechanical assemblies.

Key Features

• 5/8-11 UNC coarse thread for use with standard nuts and tapped holes
• 5 inches length under head provides adequate thread engagement for thick structural members
• Square head profile for positive wrench grip in confined or awkward spaces
• Grade 2 steel construction meets ANSI/ASME B18.2.1 dimensional standards
• Uncoated finish suitable for dry or protected interior applications
• Sold individually — package quantity of 1

Compatibility

Designed as a standard ANSI/ASME B18.2.1 square head bolt for use with 5/8-11 UNC nuts and hardware in general structural and mechanical fastening applications.

Installation Notes

Installation is performed by qualified tradespeople using an appropriate open-end, box-end, or adjustable wrench sized for the square head. Always verify the mating nut or tapped hole thread is clean and undamaged before installation. Torque to the specification required by the applicable design or structural code for Grade 2 steel fasteners. Do not use an impact driver directly on the square head without a proper square-drive socket adapter.