Value Collection 1-THN-100C Hex Lock Nut 1-8 Unc 18-8 Ss

Product Description

The VALUE COLLECTION 1-THN-100C is a nylon insert hex lock nut designed to maintain thread engagement under vibration and dynamic loading. Manufactured from 18-8 stainless steel, this fastener resists corrosion in wet, chemical-exposure, and outdoor environments where carbon steel hardware would degrade. The nylon insert collar deforms around mating threads to create prevailing torque, eliminating the need for thread-locking compounds in most applications. At 35/64 inches high and 1-7/16 inches across the flats, it suits 1-8 UNC threaded rod, bolts, and assemblies requiring a reliable, reusable locking fastener. Installers in plumbing, HVAC, electrical, and general mechanical trades use this nut as a standard hardware component.

This hex lock nut is appropriate for 1-8 UNC coarse-thread applications in both residential and commercial installations. It performs well in structural connections, equipment mounting, pipe hanger assemblies, and mechanical frames where vibration or thermal cycling could back off a standard hex nut. The right-hand thread direction follows standard UNC convention, making it a direct fit for any 1-inch coarse-thread fastener assembly. The 18-8 stainless steel construction makes it suitable for damp mechanical rooms, rooftop equipment, and similar corrosive-exposure environments.

Key Features

• Nylon insert locking style provides prevailing torque without thread-locking compounds
• 18-8 stainless steel construction resists rust and corrosion in wet or outdoor environments
• 1-8 UNC right-hand thread conforms to standard coarse-thread fastener convention
• 35/64 inches height and 1-7/16 inches width across flats for standard hex tooling
• Reusable design allows removal and reinstallation while retaining locking performance

Compatibility

Designed for use with 1-8 UNC coarse-thread bolts and threaded rod in standard inch-measurement fastener assemblies.

Installation Notes

Installation requires a standard 1-7/16 inch hex wrench or socket. De-energize and de-pressurize any system before servicing fastened connections. Tighten to the torque specification required by the assembly drawing or applicable mechanical code — do not exceed the nylon insert manufacturer recommendation for reuse cycles. Inspect the nylon insert for deformation or cracking if the nut has been removed and reinstalled multiple times.