Value Collection 741051PS M2.5 External Tooth Lock Washer

Product Description

The VALUE COLLECTION 741051PS is an external tooth lock washer designed for use with M2.5 screws and fasteners. Stamped from Grade 2 spring steel and finished with a zinc plating for corrosion resistance, this washer seats against the fastener head or nut and bites into the mating surface as the fastener is tightened. The external tooth design provides reliable locking action by resisting loosening caused by vibration or torque. With a 2.8mm inside diameter and 5.5mm outside diameter, it is sized specifically for M2.5 fastener applications in light mechanical assemblies.

This lock washer is used in electrical enclosures, control panels, light equipment assemblies, and general mechanical fastening where M2.5 hardware is specified. It is appropriate for both residential and commercial equipment applications where a compact, low-profile locking washer is required. Electricians, HVAC technicians, and general mechanical trade workers commonly use this type of hardware during equipment assembly, panel work, and component mounting tasks.

Key Features

• External tooth design bites into mating surface to resist fastener back-off under vibration
• Grade 2 spring steel construction provides consistent locking force
• Zinc-plated finish offers basic corrosion protection for indoor and light-duty applications
• Sized for M2.5 screws with a 2.8mm inside diameter
• 0.4mm thickness keeps overall stack height minimal in tight assemblies

Compatibility

Designed for use with M2.5 screws and bolts as an OEM-style external tooth lock washer in light mechanical and electrical fastening applications.

Installation Notes

Install this washer between the fastener head or nut and the mating surface, with the teeth facing the fastener bearing surface. De-energize any electrical equipment before performing fastener work inside panels or enclosures. Do not reuse lock washers that have been fully compressed or show signs of tooth deformation, as locking effectiveness will be reduced. Follow applicable equipment manufacturer torque guidance for the M2.5 fastener being used.