Value Collection 39654 Hex Lock Nut 7/16-14 Grade 8

Product Description

The VALUE COLLECTION 39654 is a 7/16-14 hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel with a zinc yellow dichromate finish. The nylon insert deforms around mating threads to resist loosening under vibration and dynamic loads. At 29/64 inches high with a 5/8-inch width across flats, this nut conforms to Unified National Coarse (UNC) thread standards. It is suited for high-strength bolted assemblies where reliable locking performance and corrosion resistance are required. Mechanical contractors, maintenance technicians, and fabricators commonly use this fastener in structural and equipment applications.

This hex lock nut is appropriate for use in general industrial, mechanical, and structural assemblies requiring a UNC 7/16-14 threaded fastener with positive locking. The nylon insert provides a prevailing torque locking action without damaging mating threads. The zinc yellow dichromate finish offers moderate corrosion protection, making it suitable for indoor mechanical assemblies and light-duty outdoor applications where environmental exposure is limited.

Key Features

• Nylon insert locking style resists loosening from vibration without thread damage
• Grade 8 steel construction for high tensile and proof load capacity
• Zinc yellow dichromate finish provides corrosion resistance
• 7/16-14 UNC right-hand thread for standard fastener compatibility
• 29/64 inch height and 5/8 inch width across flats for standard hex tooling

Compatibility

Designed as a standard UNC replacement or new-installation hex lock nut for 7/16-14 threaded bolts and studs in general mechanical and structural assemblies.

Installation Notes

Installation requires a standard 5/8-inch hex wrench or socket. Power down or de-energize any equipment before servicing fastened assemblies. Nylon insert lock nuts are intended for single-use applications in safety-critical joints, as the insert loses clamping effectiveness after removal. Follow applicable fastener torque guidelines from the equipment manufacturer or relevant industry standards for Grade 8 hardware.