Value Collection 742020PS M2 Internal Tooth Lock Washer

Product Description

The VALUE COLLECTION 742020PS is an M2 internal tooth lock washer designed to prevent fastener loosening under vibration and dynamic loads. It features an internal tooth configuration that bites into the bearing surface of the screw head or nut and the mating workpiece, creating mechanical resistance to rotation. Manufactured from Grade 2 spring steel with a zinc-plated finish for basic corrosion resistance, this washer measures 2.2mm inside diameter and 4.5mm outside diameter with a 0.3mm thickness. It is used in light-duty mechanical assemblies where compact fastener retention is required, and is installed by electricians, mechanical assemblers, and maintenance technicians working with M2 fasteners.

This lock washer is suited for residential and commercial light-duty applications including control panel assemblies, small appliance hardware, electronics enclosures, and precision mechanical sub-assemblies using M2 screw fasteners. Its compact outside diameter makes it appropriate for tight-clearance installations where larger washers would not fit. Each order is fulfilled in a package quantity of one, with a minimum order quantity of 200 pieces per transaction.

Key Features

• Internal tooth design bites into bearing surface to resist loosening under vibration
• 2.2mm inside diameter sized for M2 screws
• 4.5mm outside diameter and 0.3mm thickness for compact, low-profile fitment
• Grade 2 spring steel construction provides reliable spring-back retention force
• Zinc-plated finish offers basic corrosion protection in dry or mildly humid environments

Compatibility

Designed for use with M2 screw fasteners in light-duty mechanical and electrical assemblies requiring internal tooth lock washer retention.

Installation Notes

Install by placing the washer on the fastener shank between the screw head and the workpiece surface before driving the fastener. Ensure the toothed face contacts the workpiece or fastener bearing surface to engage the locking action. Power down any electrical assembly before servicing fasteners on live panels. Do not reuse lock washers that have been fully compressed, as they will not provide adequate retention force after deformation.