Value Collection L79NE0420 Hex Lock Nut 1/4-20 Ss

Product Description

The VALUE COLLECTION L79NE0420 is a 1/4-20 hex lock nut with a nylon insert locking mechanism, manufactured from 18-8 stainless steel. The nylon insert creates interference against the mating thread to resist loosening caused by vibration or torque reversal without damaging thread surfaces. At 19/64 inches high and 7/16 inches across the flats, this is a standard-profile nylon insert lock nut suited for general mechanical assemblies, HVAC equipment mounting, electrical enclosures, and plumbing fixture hardware. Installation requires a 7/16-inch wrench or socket.

This nut is appropriate for use in residential and light commercial applications where a reusable, corrosion-resistant fastener is required. The 18-8 stainless steel construction makes it a common choice in environments with moisture exposure, such as pool equipment, rooftop HVAC units, outdoor electrical panels, and plumbing trim work. The UNC thread form is compatible with standard inch-series fastener systems. This nut is sold individually with a minimum order quantity of 100 pieces.

Key Features

• Nylon insert locking style resists loosening under vibration without thread damage
• 18-8 stainless steel construction provides corrosion resistance in wet or outdoor environments
• 1/4-20 UNC right-hand thread — fits standard inch-series bolts and studs
• 19/64 inches height and 7/16 inches width across flats match standard hex nut tooling
• Reusable design allows disassembly and reinstallation without replacing the nut

Compatibility

Designed for use with 1/4-20 UNC inch-series bolts and threaded studs in standard mechanical, HVAC, electrical, and plumbing fastener applications.

Installation Notes

Install using a 7/16-inch open-end wrench, box wrench, or socket. De-energize equipment and relieve system pressure before accessing fastened assemblies. The nylon insert engages near the end of thread engagement — drive the nut fully seated to achieve rated locking performance. Do not exceed the torque range appropriate for 1/4-20 stainless fasteners, as over-torquing can shear the nylon insert or gall the stainless threads.