Value Collection 3744BMQ Square Head Bolt 3/8-16 Unc

Product Description

The VALUE COLLECTION 3744BMQ is a square head bolt manufactured from Grade 2 uncoated steel to ANSI/ASME B18.2.1 standards. It features a 3/8-16 UNC thread and a length under head of 2.75 inches. The square head profile provides a larger bearing surface and allows for wrench engagement in tight spaces where a hex head cannot be used. This bolt is a common fastener in structural assemblies, equipment mounting, and general industrial applications. Installation is typically performed by maintenance technicians, millwrights, or tradespeople using a box or open-end wrench sized for the square head geometry.

This bolt is suited for use in light-duty structural connections, equipment frames, conveyor systems, wood-to-metal connections, and general fabrication work. The Grade 2 steel designation indicates a low-carbon, unalloyed steel suitable for non-critical fastening applications that do not require high-tensile or hardened hardware. It is commonly used wherever a traditional square head profile is called for by design or legacy equipment specifications.

Key Features

• 3/8-16 UNC thread for standard coarse-thread engagement
• 2.75 inches length under head for moderate clamping depth
• Square head profile allows wrench access in confined or irregular mounting locations
• Grade 2 steel construction suitable for general-purpose, non-critical fastening
• Uncoated finish; compatible with field-applied coatings or use in dry interior environments
• Meets ANSI/ASME B18.2.1 dimensional standards

Compatibility

Designed as a general-purpose square head fastener for use in light structural, fabrication, and equipment assembly applications requiring a 3/8-16 UNC coarse-thread bolt with a square head profile.

Installation Notes

Installation is performed using a wrench or socket sized to the square head. Ensure mating threads are clean and free of debris before installation. Apply torque evenly and do not exceed the load limits appropriate for Grade 2 steel fasteners in the given joint design. Follow applicable ASME or project-specific torque guidelines for the fastener diameter and grade.