Value Collection NLI2050NU Hex Lock Nut 1/2-13 Grade 2

Product Description

The VALUE COLLECTION NLI2050NU is a heavy hex lock nut with a nylon insert, designed to resist loosening caused by vibration and torque in threaded fastener assemblies. Sized for a 1/2-13 UNC thread, this nut is manufactured from Grade 2 steel with a bright uncoated finish. It measures 33/64 inches in height and 7/8 inches across the flats. The nylon insert grips the mating bolt threads to create a prevailing torque lock, making it suitable for general-purpose mechanical and structural fastening applications. Maintenance technicians, pipefitters, and millwrights commonly use this style of fastener during equipment assembly and repair work.

This heavy hex lock nut is intended for use in general industrial and mechanical applications where a reliable, reusable locking fastener is required. It follows Unified National Coarse (UNC) thread standards, making it compatible with standard 1/2-13 bolts and threaded rod. Right-hand thread direction is standard for most conventional fastening applications. It does not meet military specifications and is rated for general commercial use.

Key Features

• Nylon insert provides prevailing torque resistance against vibration-induced loosening
• 1/2-13 UNC right-hand thread for compatibility with standard inch-series fasteners
• Grade 2 steel construction for general-purpose mechanical strength
• Heavy hex profile at 7/8 inches across flats for increased wrench engagement surface
• Bright uncoated finish suitable for indoor or protected environments
• Reusable locking mechanism — nylon insert retains grip over multiple installations

Compatibility

Designed for use with standard 1/2-13 UNC bolts and threaded rod in inch-series fastener assemblies. Thread direction is right-hand. Does not meet military specifications.

Installation Notes

Installation is performed by hand-threading the nut onto a 1/2-13 UNC bolt or rod, then tightening with an appropriate wrench to the assembly specification. Ensure the mating fastener and all contact surfaces are free of debris before installation. The nylon insert increases running torque, so use a properly sized wrench rather than hand pressure alone. Follow applicable mechanical codes and equipment manufacturer guidelines when specifying prevailing torque fasteners in load-bearing or structural joints.