100 pack of washers 
 Dimensions - Inner diameter 12mm (M12) 
 A Corrosion-Retardant plating provides protection from external elements and extends the life of the metal used in these flat washer sets. 
 
 
 What are Form A Flat Washers? 

 Form A Washers are used to create a flat surface for a nut to be fixed to. These washers also spread the load across a wider area. Form A Washers are the most common type of washer and are also widely used in the engineering, automotive and construction industries.