Hillman Fasteners 810512 Hex Nut 1/2-13 Galvanized 50 Pack

Product Description

The HILLMAN FASTENERS 810512 is a 1/2-13 hex nut sold in a 50-pack, designed for heavy-duty fastening applications where corrosion resistance is required. Hot dip galvanized for superior zinc coating penetration, these nuts feature a tapered oversize profile that accommodates the additional coating thickness without compromising thread engagement. The coarse thread (1/2-13 UNC) pattern provides reliable clamping force and is easy to thread by hand before final torque. Plumbers, electricians, HVAC technicians, and general contractors reach for this grade of nut when working in outdoor, underground, or moisture-exposed environments.

These hex nuts are suited for structural and mechanical fastening in residential and commercial construction, utility installations, equipment mounting, and trade rough-in work. The tapered oversize designation is standard for hot dip galvanized hardware, ensuring the nut will mate correctly with galvanized bolts and threaded rod of the same coating class. Each pack contains 50 nuts, making it practical for job-site replenishment or shop stock.

Key Features

• Hot dip galvanized finish provides heavy zinc coating for corrosion resistance in wet and outdoor environments
• Tapered oversize profile accommodates galvanized coating thickness on mating fasteners
• 1/2-13 UNC coarse thread for fast hand-threading and broad fastener compatibility
• 50-piece pack supports job-site and shop stock quantities
• Hex drive style works with standard wrenches and impact sockets

Compatibility

Designed for use with 1/2-13 UNC galvanized bolts and threaded rod. The tapered oversize thread form is the industry standard for hot dip galvanized hex nuts and is intended to mate with similarly coated 1/2-13 fasteners per standard galvanized hardware practice.

Installation Notes

Installation is performed by hand-threading the nut onto the mating bolt or threaded rod before tightening with a wrench or impact driver fitted with the correct socket. When used in structural applications, consult applicable building codes and engineer-specified torque requirements for the bolt grade and joint type. Avoid mixing galvanized and non-galvanized fasteners in the same joint to prevent accelerated galvanic corrosion. Inspect threads for damage before installation.