Hillman Fasteners 810503 1/4-20 Hex Nut 100 Pack Galvanized

Product Description

The HILLMAN FASTENERS 810503 is a 100-pack of 1/4-20 coarse thread hex nuts finished with a hot dip galvanized coating. The tapered oversize design accommodates the added zinc thickness from the galvanizing process, ensuring proper thread engagement on mating bolts or threaded rod that has also been hot dip galvanized. These nuts are a standard fastener used by electricians, plumbers, HVAC technicians, and general contractors wherever corrosion resistance is required in outdoor, wet, or high-humidity environments. The pack of 100 makes them a practical stock item for service trucks and job sites.

These hex nuts are suited for use in exterior structural connections, outdoor equipment mounting, conduit support hardware, pipe hangers, and other applications where galvanized hardware is specified for corrosion protection. The 1/4-20 thread size is one of the most common in trade work, compatible with standard 1/4-20 threaded rod, bolts, and anchors used across HVAC, plumbing, and electrical installations. Hot dip galvanizing provides a heavier zinc coating than electroplating, making these nuts appropriate for exposed or corrosive service conditions.

Key Features

• Hot dip galvanized finish for heavy-duty corrosion resistance in outdoor and wet environments
• Tapered oversize thread form accounts for zinc coating buildup on mating galvanized fasteners
• 1/4-20 coarse thread for broad compatibility with standard threaded rod and bolts
• 100-piece pack for efficient job site and truck stock replenishment
• Standard hex profile accepts common wrenches and nut drivers

Compatibility

Designed for use with 1/4-20 hot dip galvanized bolts, threaded rod, and other galvanized fasteners where a tapered oversize nut is required to accommodate zinc coating thickness.

Installation Notes

Installation is performed by hand-threading the nut onto a 1/4-20 galvanized bolt or rod, then tightening with a standard wrench or nut driver. Because the tapered oversize thread is sized for galvanized mating hardware, do not use these nuts interchangeably with standard-tolerance 1/4-20 fasteners without verifying fit. Follow applicable codes such as NEC or IPC for fastener specifications in electrical and plumbing applications. Inspect threads for damage before installation.