Value Collection R63084842 Heavy Hex Nut 3/8-16 Unc

Product Description

The VALUE COLLECTION R63084842 is a heavy hex nut in 3/8-16 UNC thread size, manufactured from stainless steel. It features a right-hand thread direction and an uncoated finish. The heavy hex pattern provides a larger across-flats dimension compared to a standard hex nut, giving more bearing surface and added strength for high-load fastening applications. At 11/16 inches across the flats and 23/64 inches in height, this nut is suited for structural and mechanical assemblies where a beefier fastener profile is required. Licensed tradespeople and maintenance professionals working with stainless fastener hardware will find this nut appropriate for a wide range of industrial and mechanical applications.

This heavy hex nut is used in residential, commercial, and industrial installations wherever 3/8-16 UNC threaded fasteners are needed and corrosion resistance is a priority. Stainless steel construction makes it a sound choice for outdoor, marine, or wet-environment assemblies. It is commonly installed by pipefitters, millwrights, maintenance technicians, and plumbers securing flanges, equipment mounts, pipe supports, and structural connections. The heavy hex profile is also specified in certain ASME and ASTM standards for structural bolt assemblies.

Key Features

• 3/8-16 UNC thread form with right-hand thread direction
• Heavy hex profile — 11/16 inches across flats, providing greater bearing surface than standard hex
• 23/64 inches in height for added thread engagement
• Stainless steel construction for corrosion resistance in wet or harsh environments
• Uncoated finish — no additional treatment that could affect dimensional tolerances

Compatibility

Designed for use with 3/8-16 UNC right-hand threaded bolts and studs in heavy hex fastener assemblies. No specific OEM compatibility is stated in available product data.

Installation Notes

Installation is typically performed by a mechanic, pipefitter, or maintenance technician using a standard 11/16-inch wrench or socket. De-energize or depressurize any system before fastening into live assemblies. Apply appropriate anti-seize compound when mating stainless fasteners to dissimilar metals to prevent galling. Torque to the specifications required by the host assembly design — do not over-torque stainless hardware as galling can occur.