Feature

●[SIZE] - M4; Outer Diameter: 12mm
●Material: made of 65Mn spring steel, burnished, corrosion resistant and durable
●Easy to install: the thickness of the product is relatively thin, be careful when installing, do not apply too much strength
●Features: a locking washer exerts a spring force between the head of the fasteners and the substrate to create more friction and rotation resistance.
●Applications: widely used in product maintenance, such as wheels, etc.


Description

A lock washer exerts a spring force between the head of the fasteners and the substrate, keeping the washer firmly against the substrate and the screw thread firmly against the nut or underground thread, creating more friction and turning resistance.
These washers create a permanent installation and locks onto plastic, steel, etc.