12 pack #4 laser cut aircraft ply washers. 3/32" thick (Aproximately .098" or 2.5mm), OD .450", ID .116". 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: RRCFWW4X332P12