Value Collection R83920013 4-40 Unc Stainless Steel Hex Nut

Product Description

The VALUE COLLECTION R83920013 is a 4-40 UNC stainless steel hex nut designed for use with machine screws in light-duty fastening applications. This nut features a right-hand thread direction conforming to Unified National Coarse (UNC) thread standards. It measures 1/4 inch across the flats and 3/32 inch high, making it a compact fastener suited for small-frame assemblies. The uncoated stainless steel construction provides corrosion resistance without surface treatments. Machinists, maintenance technicians, and assembly professionals install these nuts in equipment panels, electrical enclosures, and general mechanical assemblies where 4-40 thread sizing is specified.

This hex nut is used in residential and commercial maintenance, electronics assembly, HVAC control panel work, and light industrial applications wherever 4-40 UNC threaded fasteners are required. Its compact profile fits tight clearance areas where standard larger hex nuts would not seat properly. The stainless steel material makes it a practical choice in environments with moisture exposure or where ferrous hardware is not suitable. These nuts are typically purchased in quantities of 100 or more for bench stock or service van inventory.

Key Features

• 4-40 UNC right-hand thread for compatibility with standard 4-40 machine screws
• Stainless steel construction for corrosion resistance without coating
• 1/4 inch across flats for use with standard hex tooling
• 3/32 inch height suits low-profile and tight-clearance installations
• Uncoated finish — no risk of coating flaking in sensitive assemblies
• Does not meet military specifications — intended for commercial applications

Compatibility

Designed as a standard replacement or bench-stock hex nut for use with 4-40 UNC machine screws in commercial and light industrial fastening applications.

Installation Notes

Install using a 1/4 inch hex wrench or nut driver. Hand-tighten first to verify thread engagement before applying tool torque to avoid cross-threading. Stainless steel fasteners can be prone to galling — apply anti-seize compound when repeated removal is anticipated. De-energize any electrical assembly before working in the area where this fastener is installed.