Value Collection R52001609 Hex Lock Nut 1/2-13 Grade 8

Product Description

The VALUE COLLECTION R52001609 is a 1/2-13 hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel with a zinc yellow dichromate finish. The nylon insert creates interference against the mating thread, resisting loosening caused by vibration and torque. At 39/64 inches high with 3/4 inches across the flats, this nut meets standard UNC fastener dimensions and is driven with a 3/4-inch wrench. The zinc yellow dichromate coating provides a baseline level of corrosion resistance for general industrial and mechanical applications. Sold individually with a minimum order quantity of 10 units.

This hex lock nut is suited for bolted assemblies in industrial equipment, structural fabrication, automotive, and mechanical maintenance applications where vibration resistance is required. The UNC 1/2-13 thread size is one of the most common inch-series fastener sizes, making this nut a standard replacement or stocking item for maintenance shops, fabrication facilities, and trade contractors working with inch-system hardware. The Grade 8 steel construction handles higher clamping loads than Grade 5 equivalents, appropriate for medium-to-high-stress fastener joints.

Key Features

• Nylon insert locking style resists loosening under vibration without damaging mating threads
• Grade 8 steel construction for high-strength, high-torque fastener joints
• Zinc yellow dichromate finish for corrosion resistance in general service environments
• UNC 1/2-13 thread standard, right-hand thread direction
• 39/64 inches height and 3/4 inches width across flats match standard inch-series tooling

Compatibility

Designed for use with 1/2-13 UNC inch-series threaded fasteners in standard bolted assemblies. Verify mating bolt grade and thread pitch before installation.

Installation Notes

Installation is performed with a standard 3/4-inch open-end, box, or socket wrench. Torque the nut to the value specified by the assembly drawing or applicable fastener standard for Grade 8 hardware. Nylon insert lock nuts are generally intended for single use — once the nylon has been compressed by a mating thread, the locking effectiveness is reduced if the nut is reused. Do not use in applications where service temperatures will degrade or melt the nylon insert.