Value Collection 1-THN-75C Hex Lock Nut 3/4-10 Ss

Product Description

The VALUE COLLECTION 1-THN-75C is a 3/4-10 UNC hex lock nut with a nylon insert locking mechanism, manufactured from 18-8 stainless steel with a bright, uncoated finish. The nylon insert grips the mating thread under vibration and dynamic load, resisting loosening without the need for thread-locking compounds. At 13/32 inches high with a 1-1/16 inch width across flats, this fastener is sized for standard hex tooling. It is used by mechanical contractors, pipefitters, electricians, and industrial maintenance technicians in applications where corrosion resistance and reliable thread retention are required.

This hex lock nut is suited for use in HVAC equipment assemblies, plumbing infrastructure, electrical enclosures, and general mechanical installations where stainless steel fasteners are specified for corrosion resistance. The right-hand thread direction follows standard UNC convention, making it compatible with standard 3/4-10 threaded rod, bolts, and studs used in trade installations across residential, commercial, and light industrial settings.

Key Features

• Nylon insert locking style resists loosening under vibration without chemical thread lockers
• 18-8 stainless steel construction provides corrosion resistance in wet or humid environments
• 3/4-10 UNC thread size with right-hand thread direction
• Bright, uncoated finish — no coating buildup to affect thread fit
• Width across flats of 1-1/16 inches fits standard hex sockets and wrenches
• Width across points of 1.191 inches for clearance planning

Compatibility

Designed as a standard UNC replacement or service fastener for 3/4-10 threaded rod, bolts, and studs in mechanical, plumbing, electrical, and HVAC assemblies requiring stainless steel hardware.

Installation Notes

Installation is performed by hand-starting the nut onto the mating thread, then driving to final torque with a standard hex socket or open-end wrench sized for 1-1/16 inch across flats. The nylon insert is a single-use locking element — reuse after removal is not recommended, as the insert loses clamping effectiveness once compressed. Ensure the mating thread is clean and free of debris before installation. No special tools beyond standard hand or power wrenches are required.