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The VALUE COLLECTION B10038 is a heavy hex nut designed for high-load fastening applications in structural and mechanical assemblies. Manufactured from Grade 5 steel with a bright, uncoated finish, this nut meets ASME/SAE J995 fastener standards. The 1-1/2-6 UNC thread profile and 2-3/8 inch across-flats dimension make it suitable for large-diameter bolted connections where a wider bearing surface is required. Right-hand threading follows standard convention. Electricians, pipefitters, millwrights, and general contractors commonly install heavy hex nuts in equipment mounting, structural steel work, and heavy machinery assembly. This package contains 5 nuts per unit.
Heavy hex nuts in the 1-1/2-6 UNC configuration are typically used in commercial and industrial settings, including HVAC equipment bases, structural steel connections, pump and compressor mounting, and large mechanical assemblies. The wider hex profile compared to a standard hex nut provides increased torque capacity and load distribution across the joint. This size is common on large-diameter threaded rod and anchor bolt installations where vibration resistance and clamping force are priorities.
Designed for use with 1-1/2 inch diameter UNC coarse-thread bolts and threaded rod conforming to standard inch-series fastener specifications. Intended for structural, mechanical, and equipment-mounting applications where a heavy hex nut profile is specified.
Installation is performed by qualified tradespeople following applicable mechanical and structural codes. Power down or de-energize any associated equipment before working on fastened assemblies. Use calibrated torque equipment appropriate to the fastener grade and joint specification — consult the applicable structural or equipment standard for torque requirements specific to your application. Do not mix Grade 5 and lower-grade hardware in the same joint.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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