Value Collection 3BNFF905C Hex Nut 5/16-18 Silicon Bronze

Product Description

The VALUE COLLECTION 3BNFF905C is a 5/16-18 hex nut machined from Grade 655 silicon bronze. Silicon bronze offers strong corrosion resistance in wet, marine, and chemical environments, making this nut a practical choice where steel fasteners would corrode prematurely. The nut features a right-hand UNC thread, measures 0.5 inches across the flats, and stands 17/64 inches tall. It meets ANSI ASME B18.2.2 dimensional standards. Plumbers, marine maintenance crews, electricians, and general contractors typically install this fastener when working in corrosive or high-moisture conditions. It is supplied uncoated with a bright finish.

This hex nut is suited for residential and commercial applications where corrosion resistance is a priority. Common uses include plumbing fixture assemblies, marine hardware, pool and spa equipment, and electrical enclosures exposed to moisture. The 5/16-18 UNC thread size fits a wide range of standard bolts and threaded rod. The silicon bronze alloy resists dezincification and stress corrosion cracking, giving it a service advantage in saltwater-adjacent or chemical-wash environments. These nuts are sold in multiples of 100, making them appropriate for contractors stocking fasteners for ongoing service work.

Key Features

• Grade 655 silicon bronze construction for superior corrosion resistance in wet and marine environments
• 5/16-18 UNC right-hand thread for compatibility with standard fractional inch bolts and threaded rod
• 0.5-inch width across flats fits standard 1/2-inch wrench or socket
• Bright uncoated finish — no plating that can flake or delaminate in service
• Meets ANSI ASME B18.2.2 dimensional standard for hex nuts
• Sold in minimum order quantities of 100 for job-site and shop stocking

Compatibility

Designed as a standard hex nut for use with 5/16-18 UNC threaded bolts, studs, and threaded rod in applications requiring silicon bronze material.

Installation Notes

A licensed tradesperson or experienced technician should select fastener material appropriate to the service environment before installation. Use a standard 1/2-inch open-end wrench, combination wrench, or socket driver to torque this nut. Do not mix silicon bronze fasteners with incompatible metals in galvanically active environments without consulting a corrosion reference. Follow applicable mechanical and plumbing codes for fastener specifications on structural or pressure-bearing assemblies.