Square washers are a type of washer that have a square shape rather than a circular shape like traditional washers. They are commonly used in applications where a standard round washer may not provide enough support or coverage.

A lock washer is a type of washer designed to prevent nuts and bolts from loosening due to vibration or torque. Its working principle is to create friction between the nut or bolt head and the surface it fastens to, preventing it from turning or coming loose.

DIN6797 toothed lock washer is referred to as toothed washer, which is divided into outer tooth lock washer AZ and inner tooth lock washer JZ and countersunk head V type according to its shape.

A lock washer is a type of washer that is designed to prevent nuts and bolts from loosening under vibration or torque. It works by creating friction between the nut or bolt head and the surface it is fastened to, preventing it from turning or backing out.

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