Value Collection 5028BMQ Square Head Bolt 1/2-13 Unc

Product Description

The VALUE COLLECTION 5028BMQ is a square head bolt designed for general-purpose fastening applications in structural, mechanical, and industrial assemblies. It features a 1/2-13 UNC thread size with a 1-3/4 inch length under the head, manufactured from Grade 2 steel in an uncoated finish. The square head profile provides a large bearing surface for wrench engagement, making it well suited for installations where a standard hex head is not practical. This bolt conforms to ANSI/ASME B18.2.1 dimensional standards, ensuring predictable fitment in code-compliant assemblies. It weighs approximately 0.12 pounds per unit.

Square head bolts are commonly used in timber framing, equipment mounting, machinery bases, and agricultural fabrication where a wrench or pipe wrench is the primary tightening tool. The 1/2-13 UNC thread is a coarse-thread designation compatible with standard 1/2-13 nuts, T-nuts, and tapped holes of the same specification. This configuration is widely specified in light structural and general maintenance applications across construction, plumbing rough-in, and mechanical trade work.

Key Features

• 1/2-13 UNC coarse thread for broad compatibility with standard hardware
• 1-3/4 inch length under head suits moderate-depth fastening applications
• Grade 2 steel construction provides adequate strength for general-purpose use
• Uncoated finish suitable for indoor or protected environments
• Square head profile allows pipe wrench or adjustable wrench engagement
• Conforms to ANSI/ASME B18.2.1 dimensional standards

Compatibility

Designed as a general-purpose replacement or stock fastener for use with standard 1/2-13 UNC nuts and tapped holes meeting ANSI/ASME B18.2.1 specifications.

Installation Notes

Installation is typically performed by mechanics, millwrights, carpenters, or plumbers using a wrench, adjustable wrench, or pipe wrench sized for the square head. Always ensure the mating nut or tapped hole is the correct 1/2-13 UNC thread specification before installation. Apply thread engagement of at least one bolt diameter for reliable load transfer. De-energize and lock out any associated equipment before fastener service per applicable safety codes.