Value Collection NLIX031NTE-025B Hex Lock Nut 5/16-18 25-pack

Product Description

The VALUE COLLECTION NLIX031NTE-025B is a 5/16-18 UNC hex lock nut with a nylon insert locking mechanism, manufactured from 18-8 stainless steel with a bright uncoated finish. The nylon insert compresses against the mating thread to resist loosening caused by vibration and torque, making it well-suited for assemblies where fastener retention is critical. Standing 0.25 inches high with a 0.5 inches width across flats, this nut installs with standard hex tooling. The 18-8 stainless steel construction provides corrosion resistance appropriate for wet, outdoor, or chemically exposed environments. This package contains 25 nuts, meeting the minimum order quantity for this SKU.

This hex lock nut is used across a wide range of trade and industrial applications including HVAC equipment frames, plumbing fixture mounting, electrical enclosure assemblies, pool equipment hardware, and general mechanical fabrication. The right-hand thread direction is standard for the vast majority of fastening applications. Licensed tradespeople and maintenance technicians working on corrosion-prone installations commonly specify 18-8 stainless hardware to extend service life and reduce callback frequency.

Key Features

• Nylon insert locking style resists vibration-induced loosening without separate locking hardware
• 18-8 stainless steel construction for corrosion resistance in wet or outdoor environments
• 5/16-18 UNC thread size with right-hand thread direction
• Bright uncoated finish maintains dimensional consistency and avoids coating buildup on threads
• Width across flats of 0.492 to 0.502 inches fits standard 1/2-inch hex tooling
• Sold in a 25-count package to match minimum order quantity requirements

Compatibility

Designed as a standard UNC 5/16-18 hex lock nut suitable for use wherever a nylon insert prevailing-torque nut is specified in that thread size and stainless steel material grade is required.

Installation Notes

Nylon insert lock nuts are single-use fasteners in critical applications — the nylon insert deforms during installation and provides reduced locking torque if removed and reused. Install with a calibrated torque wrench to the fastener manufacturer's recommended seating torque for the joint material and application. Ensure mating threads are clean and free of debris before assembly. Stainless steel fasteners are susceptible to galling; applying an appropriate anti-seize compound to the threads prior to installation is standard practice.