Value Collection 04FNH 4-48 Machine Screw Hex Nut Zinc-plated

Product Description

The VALUE COLLECTION 04FNH is a 4-48 machine screw hex nut made from steel with a zinc-plated finish. This fastener is designed for use with 4-48 UNC machine screws, providing a reliable threaded connection in light-duty mechanical and electrical assemblies. The right-hand thread follows the UN thread standard at a 2B fit class, meeting ANSI ASME B18.6.3 dimensional requirements. At 0.25 inches across flats and 0.098 inches in height, it is a compact nut suited for small-fastener applications. Licensed tradespeople and assembly technicians working on panel fabrication, enclosures, or fine-thread assemblies will find this nut dimensionally consistent with industry standards.

This hex nut is commonly used in residential and commercial electrical panel work, HVAC controls, and mechanical equipment where 4-48 threaded fasteners are required. It is appropriate for applications demanding a non-graded steel fastener with corrosion resistance provided by the zinc plating. Typical installation scenarios include mounting small components, securing terminal hardware, and assembling lightweight sheet-metal enclosures. It is not rated to military specifications.

Key Features

• 4-48 thread size with right-hand UN thread form
• 2B thread fit class per ANSI ASME B18.6.3
• Steel construction with zinc-plated finish for basic corrosion resistance
• 0.25 inches across flats for standard hex wrench or nut driver engagement
• 0.098 inches height — compact profile for tight-clearance assemblies
• Width across points: 0.289 inches

Compatibility

Designed for use with 4-48 machine screws following the UN thread standard. Suitable as a standard replacement or stock hex nut wherever ANSI ASME B18.6.3 compliant 4-48 fasteners are specified.

Installation Notes

Installation is performed by hand or with a small hex wrench or nut driver sized to 0.25 inches across flats. Power down any equipment and follow applicable electrical or mechanical lockout-tagout procedures before working in live panels or enclosures. Do not overtighten on small-diameter machine screws, as non-graded steel fasteners at this size can be susceptible to thread damage under excessive torque. Follow applicable NEC or equipment manufacturer guidelines when used in electrical enclosure applications.