Value Collection B10657 Hex Lock Nut M20 X 1.5 Grade 8 5 Pack

Product Description

The VALUE COLLECTION B10657 is a metric hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel with a zinc-plated finish. It is designed for M20 x 1.5 right-hand threaded fastener applications and conforms to DIN 985 standards. The nylon insert compresses against the bolt thread to resist loosening caused by vibration or dynamic loading without damaging the mating thread. This package contains 5 nuts. Licensed trades professionals and maintenance technicians working with metric fastener assemblies are the primary installers.

This nut is suited for structural and mechanical assemblies that require a reliable prevailing-torque locking fastener in metric thread sizes. The M20 x 1.5 thread pitch and DIN 985 profile make it a standard choice in industrial equipment, heavy machinery, and commercial mechanical systems where vibration resistance is a critical design requirement. The zinc-plated coating provides moderate corrosion resistance in dry to mildly humid environments.

Key Features

• Nylon insert locking style resists vibration-induced loosening without thread damage
• Grade 8 steel construction for high-strength fastener applications
• Zinc-plated finish provides moderate corrosion resistance
• M20 x 1.5 metric thread, right-hand direction
• Conforms to DIN 985 fastener standard
• Sold in a 5-piece package

Compatibility

Designed as an OEM-style replacement or service fastener for metric M20 x 1.5 threaded assemblies requiring a DIN 985 prevailing-torque hex lock nut.

Installation Notes

Installation should be performed by a qualified mechanic or trades professional following applicable equipment service documentation. Ensure the mating bolt or stud is clean and free of damage before installation. Nylon insert lock nuts are generally rated for single use — reuse after full removal can reduce locking effectiveness and is not recommended. Torque to values specified in the equipment manufacturer's documentation for M20 Grade 8 fasteners.