Value Collection R52001223 Square Head Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION R52001223 is a square head bolt sized at 1/2-13 UNC with a 2-1/2 inch length under head. It is manufactured from Grade 2 steel with an uncoated finish. Square head bolts are used where a wrench or pipe wrench must grip the head rather than a socket or hex tool. This fastener meets ANSI/ASME B18.2.1 dimensional standards. It is installed by maintenance mechanics, pipefitters, millwrights, and general tradespeople in structural assemblies, equipment mounting, and heavy-duty mechanical connections requiring positive wrench engagement.

This bolt is suited for industrial, commercial, and utility applications where standard hex head fasteners are not practical or where legacy equipment specifies square head hardware. Common uses include pipe hangers, flanged connections, machinery frames, and structural steel assemblies. The uncoated finish is appropriate for interior or dry-environment installations or where a field-applied coating will be added after assembly.

Key Features

• Square head profile allows positive grip with open-end, adjustable, or pipe wrenches
• 1/2-13 UNC thread size for broad compatibility with standard 1/2-inch nuts and tapped holes
• 2-1/2 inch length under head suits medium-depth clamping applications
• Grade 2 steel construction meets standard load-bearing requirements for general mechanical use
• Conforms to ANSI/ASME B18.2.1 for consistent dimensional tolerancing
• Uncoated finish for use as-is or with field-applied corrosion protection

Compatibility

Designed as a general-purpose replacement or new-install square head bolt for equipment, structural, and mechanical assemblies specifying 1/2-13 UNC square head hardware per ANSI/ASME B18.2.1.

Installation Notes

Installation is performed by qualified mechanics, millwrights, or tradespeople using standard hand or power tools appropriate for 1/2-inch fasteners. De-energize or lock out equipment before installing or removing fasteners in electrical or mechanical assemblies per applicable LOTO procedures. Do not exceed the load ratings for Grade 2 steel hardware; verify that the application does not require a higher-grade fastener before installation. Apply a compatible thread lubricant or anti-seize compound if specified by the equipment manufacturer.