Value Collection 34041 Hex Lock Nut 5/8-18 Nylon Insert

Product Description

The VALUE COLLECTION 34041 is a 5/8-18 UNF hex lock nut with a nylon insert locking mechanism, manufactured from Grade 2 steel with a zinc-plated finish. The nylon insert compresses against the mating thread to resist loosening caused by vibration or torque without requiring a secondary locking element. The nut measures 13/32 inches in height with a 15/16-inch width across flats and features a right-hand thread direction. It is suited for general-purpose mechanical assemblies where a reliable, reusable prevailing-torque fastener is required. Licensed tradespeople and maintenance technicians working in HVAC equipment, plumbing fixtures, and electrical enclosures commonly use this style of lock nut.

This hex lock nut is appropriate for use in residential and light commercial mechanical systems where vibration resistance is a priority. It is a standard UNF fastener, making it compatible with inch-system threaded assemblies across a wide range of trade applications including equipment mounting, bracket fastening, and structural panel assembly. The zinc-plated finish provides basic corrosion resistance for indoor and semi-exposed installations.

Key Features

• Nylon insert locking style resists loosening under vibration without damaging mating threads
• 5/8-18 UNF right-hand thread for use with standard inch-system fasteners
• Grade 2 steel construction for general-purpose mechanical load requirements
• Zinc-plated finish provides basic corrosion resistance
• 13/32-inch height and 15/16-inch width across flats for standard hex tooling

Compatibility

Designed as a general-purpose UNF inch-system hex lock nut suitable for use in mechanical assemblies requiring a 5/8-18 prevailing-torque fastener with nylon insert locking.

Installation Notes

Installation requires a standard 15/16-inch hex wrench or socket. Power down or de-energize any equipment before servicing fasteners in electrical or mechanical enclosures. The nylon insert is rated for one-time or limited reuse; inspect the insert for deformation before reinstalling a used nut. Follow applicable equipment manufacturer torque guidelines and relevant codes when used in structural or safety-critical assemblies.