Value Collection R52001215 Square Head Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION R52001215 is a square head bolt designed for general-purpose fastening in mechanical, structural, and industrial applications. It features a 1/2-13 UNC thread profile and a 1-1/2 inch length under the head, making it suitable for through-bolting assemblies where a wrench or pipe wrench engagement on the head is preferred over a hex configuration. The bolt is manufactured from Grade 2 steel with an uncoated finish, providing adequate tensile strength for light-to-medium duty connections. Plumbers, pipefitters, millwrights, and general maintenance technicians commonly use square head bolts where traditional hex fasteners are not accessible with standard tooling.

This bolt is appropriate for residential and light commercial construction, mechanical equipment mounting, pipe hangers, and utility assemblies where a 1/2-13 UNC thread engagement is specified. The square head profile offers four wrench engagement surfaces and is well suited to applications where turning clearance is limited or where pipe wrenches are the primary installation tool. Grade 2 steel suits non-critical structural connections and general maintenance work that does not require high-strength fastener ratings.

Key Features

• 1/2-13 UNC thread standard for compatibility with standard inch-series nuts and tapped components
• 1-1/2 inch length under head suits moderate depth through-bolt and clamping applications
• Square head profile provides positive wrench or pipe wrench engagement in tight spaces
• Grade 2 steel construction for general-duty mechanical and structural use
• Uncoated finish for bare steel applications or where field coating will be applied

Compatibility

Designed as a general-purpose replacement or supplemental fastener for any assembly specifying a 1/2-13 UNC square head bolt with a 1-1/2 inch length under head in Grade 2 steel.

Installation Notes

Installation should be performed by qualified tradespeople following applicable mechanical and structural codes for the specific application. Always select the correct nut and flat washer rated for the bolt grade being used. Apply a wrench or pipe wrench to the square head to prevent rotation during tightening. Do not substitute Grade 2 fasteners in applications that specify Grade 5 or Grade 8 hardware.