Value Collection 741076PS M5 External Tooth Lock Washer

Product Description

The VALUE COLLECTION 741076PS is an external tooth lock washer designed for use with M5 screws and fasteners. It features a 5.3mm inside diameter and a 10mm outside diameter, with a thickness of 0.6mm. Constructed from Grade 2 spring steel with a zinc-plated finish, this washer bites into the mating surface when torque is applied, resisting loosening from vibration and rotation. It is a standard hardware component used across electrical, mechanical, and HVAC assembly and repair applications where reliable fastener retention is required.

This external tooth lock washer is suited for residential and light commercial applications wherever M5 fasteners are used. Common install scenarios include panel assemblies, equipment mounting, electrical enclosures, and general mechanical assemblies. The zinc-plated finish provides basic corrosion resistance for indoor and protected environments. It is typically installed by electricians, HVAC technicians, plumbers, and general maintenance trades during equipment assembly or field repair.

Key Features

• External tooth design bites into surface under torque to resist loosening from vibration
• Grade 2 spring steel construction for reliable tension and bite
• Zinc-plated finish for basic corrosion resistance in protected environments
• 5.3mm inside diameter sized for M5 screws and fasteners
• 0.6mm thickness for low-profile fastener stack-up

Compatibility

Designed for use with M5 screws and bolts as an OEM-style external tooth lock washer in standard mechanical and electrical assembly applications.

Installation Notes

Place the lock washer between the fastener head and the mating surface before driving the screw. Ensure the toothed side faces the mating surface to allow proper engagement. Power down or de-energize any equipment before servicing fastener connections in electrical or HVAC assemblies. Follow applicable NEC or equipment manufacturer guidelines when installing hardware in electrical enclosures.