Forgefix TechFast Bonded EPDM Washers provide a watertight seal. They offer protection against the weather, especially where moisture and condensation are a factor. The washer seals the hole created in the material being fixed and reduces the chance of corrosion.Select Option 5.5 x 16mm Box 1005.5 x 19mm Box 1006.3 x 16mm Box 1006.3 x 19mm Box 100 Add to Basket Quantity