The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.