Value Collection 1-THN-8C Hex Lock Nut 18-8 Ss Nylon Insert

Product Description

The VALUE COLLECTION 1-THN-8C is a nylon insert hex lock nut manufactured from 18-8 stainless steel with a bright, uncoated finish. The nylon insert provides prevailing torque locking, resisting vibration-induced loosening without requiring adhesives or secondary locking hardware. This nut measures 3/16 inches in height with a width across flats of 11/32 inches (0.336 to 0.345 inches) and a width across points of 0.374 inches. It is threaded right-hand per UNC fastener standards. Machinists, maintenance technicians, and mechanical contractors install this type of nut wherever corrosion resistance and reliable thread retention are required in a single fastener.

This hex lock nut is suited for light mechanical assemblies, HVAC brackets, plumbing fixtures, electrical enclosure hardware, and pool equipment frames where stainless steel corrosion resistance is a priority. The nylon insert engages the bolt threads upon final seating, creating a friction-based lock that remains effective through moderate thermal cycling and vibration. The UNC thread form makes it compatible with standard inch-series bolts and machine screws commonly found across residential and light commercial applications.

Key Features

• 18-8 stainless steel construction resists corrosion in wet and outdoor environments
• Nylon insert locking style provides prevailing torque without adhesives
• Right-hand UNC thread direction compatible with standard inch-series fasteners
• Bright, uncoated finish maintains dimensional tolerances and appearance
• Compact 3/16 inch height suits low-clearance fastening applications

Compatibility

Designed as a standard UNC inch-series hex lock nut suitable for use with matching grade bolts and machine screws in mechanical, HVAC, plumbing, electrical, and pool equipment assemblies.

Installation Notes

Installation requires only a standard open-end or box wrench sized to 11/32 inches across flats. Always de-energize or depressurize the assembly before servicing fastened joints. The nylon insert is rated for single use — once fully seated and removed, the locking effectiveness of the insert is reduced, and replacement with a new nut is recommended. Do not exceed the temperature limits of the nylon insert in high-heat applications such as direct contact with exhaust components.