Metric Single Coil Lock Washer, Rect Sect, Din 127, Steel Zinc Plated CR3

A marine grade single coil (rectangular section) washer also known as a spring lock washer, split lock or split ring washer in steel with a bright zinc plating manufactured to Din 127. Often used to prevent loosening of a fastener as a result of vibration, a spring washer has a split in the washer section that when tightened each side of the split bites into the mating nut and mounting surface.