49 INSULATION FIXINGS INSULATION RETAINING WASHER sales@evolutionfasteners.co.uk www.evolutionfasteners.co.uk Code Size Diameter Box RW5 5 mm Recess 46 mm 500 RW18 18 mm Recess 46 mm 500 RW35 35 mm Recess 50 mm 600 EVNW35 35mm polyprop 35mm 1000 EVPPW50 50mm polyprop 50mm 1000 RW65 65 mm Recess 50 mm 400 ECW60 12 mm Recess 60 mm 100 Insulation Retaining Washer Evolution Insulation retaining washers can be used in conjunction with: Evolution Woodscrews Drywall Screws Masonry screws Long length Insulation Screws