Value Collection R63482842 Serrated Flange Nut 3/8-16

Product Description

The VALUE COLLECTION R63482842 is a serrated flange nut designed for 3/8-16 unified coarse thread applications. The integrated serrated flange distributes clamping load across a wider bearing surface and bites into the mating material to resist loosening under vibration. Manufactured from 18-8 stainless steel, this nut resists corrosion in wet, chemical-exposed, or outdoor environments. The flange diameter measures 3/4 inches, and the overall height reaches 0.347 inches. Electricians, plumbers, HVAC technicians, and general industrial maintenance personnel commonly use this fastener where a separate washer is impractical and vibration resistance is required.

This serrated flange nut is suited for light to medium structural assemblies, equipment mounting, panel attachment, and mechanical sub-frame connections across residential and commercial trade applications. The 3/8-16 thread is a standard coarse-pitch size found widely in HVAC equipment brackets, electrical enclosures, plumbing support strut systems, and general fabrication. The 18-8 stainless steel grade makes it appropriate for installations in humid, coastal, or corrosive service conditions where carbon steel fasteners would degrade prematurely.

Key Features

• Serrated flange provides built-in vibration resistance without a separate lock washer
• 3/8-16 unified coarse thread for broad compatibility with standard hardware
• 18-8 stainless steel construction for corrosion resistance in wet and outdoor environments
• 3/4 inch flange diameter spreads clamping load to protect mating surfaces
• Flange height of 0.347 inches with a minimum width across flats of 0.551 inches for standard wrench engagement
• Inch measurement system for direct replacement in standard-thread assemblies

Compatibility

Designed for use with any 3/8-16 unified coarse thread bolt or stud in standard inch-system assemblies requiring a serrated flange nut profile.

Installation Notes

Installation requires a standard 9/16 inch wrench or socket sized to the width across flats. Power down or de-energize any electrical or mechanical equipment before fastener service. The serrated flange face must seat directly against the mating surface to engage properly — do not install an additional flat washer between the flange and the work surface, as this defeats the serration locking function. Follow applicable mechanical and structural codes for fastener torque requirements based on joint design and load conditions.