Value Collection R52001689 Hex Lock Nut 3/8-16

Product Description

The VALUE COLLECTION R52001689 is a 3/8-16 hex lock nut with a distorted thread locking style, designed to resist loosening under vibration and dynamic loads. The distorted thread design creates mechanical interference when the nut is driven onto a mating bolt, providing a secure hold without the need for additional locking hardware. Made from Grade C steel with a clear cadmium finish, this nut is well-suited for fastening applications where corrosion resistance and consistent clamping force are required. Measured at 21/64 inches in height with a 9/16-inch width across flats, it follows the UNC fastener standard with a right-hand thread direction. Licensed trades and industrial technicians working in mechanical assemblies routinely specify this type of hardware.

This nut is used in a wide range of trade and industrial fastening applications, including HVAC equipment assembly, plumbing fixture mounting, electrical enclosure fabrication, and general mechanical assembly work. The 3/8-16 UNC thread size is among the most common inch-series fastener specifications, making this nut a practical choice for both field repairs and production assembly. The distorted thread locking feature eliminates the need for secondary locking methods such as thread-locking compounds or split lock washers in many standard applications.

Key Features

• Distorted thread locking style resists loosening from vibration without secondary locking hardware
• 3/8-16 UNC thread size, right-hand direction, inch measurement system
• Grade C steel construction for reliable mechanical strength
• Clear cadmium finish provides corrosion resistance
• Standard hex profile: 9/16 inches across flats for common wrenches and sockets
• Height of 21/64 inches suits compact fastening assemblies

Compatibility

Designed for use with 3/8-16 UNC inch-series threaded fasteners following standard hex nut dimensions. Suitable for general mechanical, HVAC, plumbing, and electrical enclosure assembly applications where a distorted thread hex lock nut is specified.

Installation Notes

Installation is performed by hand-starting the nut onto the mating 3/8-16 threaded fastener and torquing to the assembly specification with an appropriate wrench or socket. Ensure the mating bolt or stud is free of damage, debris, and excessive corrosion before installation. The distorted thread design increases drive torque compared to a standard hex nut, which is normal and expected. Follow applicable mechanical assembly standards and equipment manufacturer guidelines for final torque values.