Value Collection R57500126 Acorn Nut 3/8-24 Unf

Product Description

The VALUE COLLECTION R57500126 is a standard acorn nut machined from Grade 18-8 stainless steel with a 3/8-24 UNF right-hand thread. The domed cap design closes off the exposed thread end, protecting both the fastener and mating hardware from corrosion, contamination, and mechanical damage. At 0.625 inches overall height and 0.5625 inches width across flats, this nut fits standard 9/16-inch wrenching tooling. The uncoated 18-8 stainless construction provides solid corrosion resistance in wet, humid, or mildly chemical environments without the variability of plated finishes. Suitable for use wherever a finished, closed-end fastener is required on a 3/8-24 UNF threaded stud or bolt.

This acorn nut is used across a wide range of trade and light industrial applications including HVAC equipment panels, plumbing fixture mounting, electrical enclosure hardware, and pool or spa equipment exposed to moisture. The fine 3/8-24 UNF thread pitch makes it appropriate for applications requiring precise torque control or vibration-resistant fastening. It is typically installed by HVAC technicians, plumbers, electricians, and mechanical contractors as part of equipment assembly or field repair work.

Key Features

• Grade 18-8 stainless steel construction for corrosion resistance in wet and humid environments
• 3/8-24 UNF right-hand thread for compatibility with fine-thread fastener assemblies
• Domed acorn cap protects exposed thread ends from damage and contamination
• 9/16 inch width across flats fits standard hex wrenches and sockets
• Uncoated finish eliminates coating delamination concerns in corrosive service
• Overall height of 5/8 inch provides adequate dome clearance over standard thread protrusion

Compatibility

Designed for use on 3/8-24 UNF right-hand threaded studs and bolts requiring a closed-end acorn-style nut in stainless steel.

Installation Notes

Install using a 9/16-inch hex wrench or socket. Ensure mating threads are clean and free of debris before installation. Do not cross-thread — 18-8 stainless is susceptible to galling if nuts are started at an angle or driven too quickly with power tools. Hand-start threads fully before applying final torque.