Value Collection 812540PS Hex Lock Nut Grade 8 Steel Din 985

Product Description

The VALUE COLLECTION 812540PS is a metric hex lock nut with a nylon insert locking style, manufactured from Grade 8 steel with a zinc finish. The nylon insert creates interference with the mating thread, resisting loosening caused by vibration and torque. This nut measures 13.00 mm width across flats and 14.38 mm width across points, conforming to DIN 985 standards. It is well suited for general industrial fastening applications where a reliable, reusable prevailing-torque lock nut is required. Electricians, pipefitters, millwrights, and maintenance technicians routinely use this style of nut in both structural and mechanical assemblies.

This nut is designed for metric threaded fastener applications following DIN 985 specifications. It is appropriate for use in light to medium-duty assemblies where vibration resistance is needed without permanently deforming the mating fastener. Typical installations include equipment mounting, panel fabrication, and mechanical assemblies in residential, commercial, and light industrial environments. The zinc finish provides a basic level of corrosion resistance for indoor and sheltered outdoor applications.

Key Features

• Nylon insert provides prevailing-torque locking without damaging mating threads
• Grade 8 steel construction for reliable load-bearing performance
• Zinc finish adds corrosion resistance for general-purpose use
• Conforms to DIN 985 fastener standard for metric applications
• Right-hand thread direction compatible with standard metric fasteners

Compatibility

Designed for use with standard DIN 985 metric threaded fasteners. Verify thread pitch and nominal diameter before installation to confirm fitment with the mating bolt or stud.

Installation Notes

Installation of nylon insert lock nuts is typically performed by maintenance technicians, pipefitters, or millwrights using standard metric wrenches or nut drivers. Ensure the mating fastener threads are clean and undamaged before assembly. Nylon insert lock nuts are generally rated for limited reuse — inspect the nylon insert for wear after each removal and replace the nut if the insert no longer provides resistance. Do not exceed the torque range appropriate for the fastener diameter and grade.