Repair washer or often referred to as penny washers, have a large outside diameter than the usual found in your regular flat washers. The repair washer will host a large surface area which is used to spread the load of a screwed fastening and prevent further damage. All repair washers have a thickness of 1.5mm.Benefits of using Repair WashersIdeal to use in emergency situations where a large hole has been formedResistant to compression, shearing, bending and crackingResistant to corrosion