12 pack #12 laser cut aircraft ply washers. 1/64" thick (Aproximately .016" or .4mm), OD .600", ID .257". Use in many applications such as wing hold down bolts where a softer washer is often desired. Use for shimming motor mounts, servos and anyplace fine thickness adjustment is needed. Work well with metal and plastic fasteners. SKU Number: RRCFWW14X164P12