Value Collection R52001281 Square Head Bolt 3/4-10 Unc

Product Description

The VALUE COLLECTION R52001281 is a square head bolt designed for general fastening applications where a wrench-friendly head profile is required. Machined to a 3/4-10 UNC thread size with 3 inches of length under the head, this bolt meets ANSI/ASME B18.2.1 dimensional standards. Constructed from Grade 2 steel with an uncoated finish, it suits standard structural and mechanical assemblies. Licensed tradespeople and maintenance technicians install this fastener across a range of industrial, commercial, and utility applications where square head geometry simplifies torquing in tight or awkward spaces.

This bolt is suited for use in structural framing, mechanical equipment mounting, and utility installations where UNC thread engagement and a large wrench-bearing head are needed. The square head profile provides four wrench contact surfaces, making it practical in applications where a hex head is less accessible. Typical install environments include HVAC equipment supports, plumbing equipment bases, electrical enclosure mounting, and general structural ironwork.

Key Features

• 3/4-10 UNC thread for standard coarse-thread engagement with nuts and tapped holes
• 3 inches length under head for adequate thread engagement in thick stock
• Square head geometry provides four wrench flats for reliable torquing in confined areas
• Grade 2 steel construction meets general-purpose structural load requirements
• Uncoated finish suitable for dry indoor environments or where field coating will be applied
• Conforms to ANSI/ASME B18.2.1 dimensional standards

Compatibility

Designed as a standard UNC square head fastener compatible with 3/4-10 threaded nuts, couplers, and tapped components conforming to ANSI/ASME B18.2.1 specifications.

Installation Notes

Installation is performed by mechanics, millwrights, plumbers, or HVAC technicians depending on the application. Use an appropriately sized box-end or adjustable wrench on the square head to avoid rounding corners during torquing. De-energize and depressurize any equipment before replacing structural fasteners in live systems. Apply a flat washer and properly rated nut to achieve full clamping force; do not substitute mismatched thread forms.