For thin workpieces and sensitive surfaces. Suitable for metric screws. Flat Washers are used to enlarge the surface area of a screw. It is mainly used with a carriage bolt for wood working projects however, it can be used in other cases.

A washer with a large diameter, ideal for spreading a load and reducing hole diameter.

Sometimes referred to as repair, mudguard or penny washers.

Boxes of assorted washers in multiple types and sizes