Value Collection R52001633 Hex Lock Nut 1/4-28 Grade 8

Product Description

The VALUE COLLECTION R52001633 is a 1/4-28 UNF hex lock nut with a nylon insert locking style, manufactured from Grade 8 steel with a bright uncoated finish. The nylon insert compresses against mating threads to resist loosening caused by vibration, torque, and thermal cycling. At 5/16 inches high with a 7/16-inch width across flats, this nut is sized for standard 1/4-28 fine-thread fastener applications. It is installed by mechanics, millwrights, and maintenance technicians wherever a reliable, reusable prevailing-torque locking fastener is required.

This hex lock nut is suited for general industrial, mechanical, and structural assembly work using fine-thread 1/4-28 fasteners. Right-hand thread direction matches standard fastener orientation. The Grade 8 steel construction provides high tensile strength for demanding load-bearing connections. Typical applications include machinery assembly, equipment mounting, and any joint subject to vibration that would loosen a standard hex nut over time.

Key Features

• Nylon insert locking style resists loosening under vibration without damaging mating threads
• Grade 8 steel construction for high tensile strength
• 1/4-28 UNF fine-thread specification for precise thread engagement
• Right-hand thread direction for standard installation
• Bright uncoated finish suitable for dry or lightly oiled environments
• 5/16-inch height and 7/16-inch width across flats for use with standard 7/16-inch wrenches

Compatibility

Designed as a prevailing-torque replacement or serviceable lock nut for 1/4-28 UNF fine-thread fastener assemblies in industrial and mechanical applications.

Installation Notes

Install using a 7/16-inch wrench or socket. Power down and de-energize any equipment before servicing fasteners on live assemblies. Nylon insert nuts are intended for use at moderate temperatures — verify suitability if installation location is subject to sustained elevated heat, as nylon inserts can lose locking force above certain temperature thresholds. Do not reuse a nylon insert lock nut if the nylon insert shows visible damage or no longer provides prevailing torque resistance.