Value Collection 1-THN-62C Hex Lock Nut 5/8-11 18-8 Ss

Product Description

The VALUE COLLECTION 1-THN-62C is a 5/8-11 hex lock nut with a nylon insert locking mechanism, manufactured from grade 18-8 stainless steel with a bright, uncoated finish. The nylon insert collar compresses against mating threads under torque, providing vibration-resistant locking without requiring adhesives or secondary hardware. At 25/64 inches in height with a 15/16-inch width across flats, this nut suits compact fastening applications where corrosion resistance and reliable clamping are both required. It follows UNC thread standards with a right-hand thread direction. Plumbers, pipefitters, HVAC installers, and general tradespeople use this type of fastener on equipment frames, pipe supports, and structural connections exposed to moisture or corrosive environments.

This hex lock nut is suited for indoor and outdoor installations where stainless steel corrosion resistance is a priority over coated carbon steel fasteners. Typical use cases include mounting brackets on HVAC equipment, pipe hanger assemblies, electrical enclosure hardware, and pool or water treatment equipment structural connections. The nylon insert style is appropriate for static and low-vibration assemblies operating within the temperature limits of the nylon insert material. It is sold individually and ordered in single-unit increments.

Key Features

• Nylon insert locking collar resists loosening from vibration without thread-locking compounds
• Grade 18-8 stainless steel construction provides corrosion resistance in wet or outdoor environments
• 5/8-11 UNC thread size with right-hand thread direction
• Bright, uncoated finish — no coating to flake or interfere with thread engagement
• Compact profile: 25/64 inches height, 15/16 inches width across flats
• Width across points of 1.051 inches for standard socket or wrench fitment

Compatibility

Designed for use with any 5/8-11 UNC right-hand threaded bolt or stud in applications requiring a nylon insert prevailing-torque lock nut.

Installation Notes

Installation requires a standard 15/16-inch open-end, box, or socket wrench. Power down or de-energize any equipment before working on fastened assemblies. Nylon insert lock nuts are single-use by design — once the nylon insert has been fully engaged and removed, the locking force is reduced and the nut should not be reused in critical applications. Follow applicable mechanical and structural codes for torque sequencing on multi-fastener joints.