Value Collection L79NE0518 Hex Lock Nut 5/16-18 Ss

Product Description

The VALUE COLLECTION L79NE0518 is a nylon insert hex lock nut designed to resist loosening under vibration and dynamic load. Manufactured from grade 18-8 stainless steel, it provides reliable corrosion resistance in wet, chemical-exposure, and outdoor environments. The nylon insert creates a prevailing torque that grips the mating thread without damaging it, maintaining clamp load through repeated thermal cycling or mechanical shock. Standing 23/64 inches high with a 1/2 inch width across flats, this nut fits standard 5/16-18 UNC fasteners. Installers in HVAC, plumbing, electrical, and general mechanical trades use this type of fastener wherever stainless hardware and positive thread locking are both required.

This hex lock nut is suited for residential and commercial applications where standard steel fasteners would corrode or where vibration-prone assemblies demand positive thread retention. Typical install scenarios include equipment mounting, pipe hanger hardware, electrical panel supports, and structural bracketing in corrosive or moisture-rich environments. The right-hand thread direction is standard for all common fastening tools. Sold individually with a minimum order quantity of 100 pieces, making it appropriate for stocking or multi-unit service work.

Key Features

• Nylon insert locking style resists loosening under vibration without damaging mating thread
• Grade 18-8 stainless steel construction provides corrosion resistance in wet and chemical environments
• 5/16-18 UNC thread size covers a wide range of standard fastening applications
• Right-hand thread direction compatible with all standard tools and fasteners
• Height of 23/64 inches and 1/2 inch width across flats for use with standard wrenches and sockets

Compatibility

Designed for use with 5/16-18 UNC right-hand threaded bolts and studs where a nylon insert prevailing-torque lock nut is specified.

Installation Notes

Installation requires a standard wrench or socket sized for 1/2 inch across flats. De-energize and isolate any equipment before fastener work on live assemblies. Nylon insert lock nuts are generally single-use; the insert loses effectiveness if removed and reinstalled. Verify thread engagement depth meets the requirements of the applicable code or equipment manufacturer before torquing.