Value Collection KP66147 Hex Lock Nut 5/8-18 Grade C 25 Pack

Product Description

The VALUE COLLECTION KP66147 is a distorted-thread hex lock nut designed to resist loosening under vibration and dynamic loads. Manufactured from Grade C steel with a zinc-plated and wax finish, this nut provides corrosion resistance suitable for general mechanical and industrial fastening applications. The 5/8-18 UNF (Unified Fine Thread) sizing delivers a tighter thread pitch for improved holding strength compared to coarse-thread equivalents. Right-hand thread direction follows standard fastening convention. Each package contains 25 nuts, making it practical for production, maintenance, and repair work where consistent torque retention is required.

This hex lock nut is suited for use in mechanical assemblies, equipment maintenance, and structural fastening where thread-locking performance is needed without the use of adhesives or separate locking inserts. The distorted-thread locking style creates a prevailing torque that holds the nut in place after installation. Typical applications include machinery, automotive components, and general industrial assemblies using UNF fastener systems. Installation is handled by maintenance technicians, machinists, millwrights, and trade professionals working with inch-measurement fastener systems.

Key Features

• Distorted-thread locking style provides prevailing torque without additional locking hardware
• 5/8-18 UNF right-hand thread for compatibility with standard fine-thread fastener systems
• Grade C steel construction for reliable mechanical strength in general-duty applications
• Zinc-plated with wax finish for corrosion resistance and reduced installation friction
• Sold in a 25-count package for maintenance, repair, and production use

Compatibility

Designed as an OEM-style replacement or standard-service hex lock nut for applications using 5/8-18 UNF inch-measurement fastener systems.

Installation Notes

Power down or de-energize any equipment before servicing fastened assemblies. Use a properly sized hex wrench or socket matching the nut width across flats to avoid rounding. Distorted-thread lock nuts are intended for single-use applications in critical joints; reuse may reduce prevailing torque performance. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly.