Metro Industries offer a full line of FKM (Viton™) Rubber Washers to fit most standard screw sizes.
FKM (Viton™) Material Properties
FKM (Viton™) comes standard in a 75 +/-5 Durometer Shore A Hardness with a light cloth finish. FKM (Viton™) is rated for use in applications involving temperatures up to +450 F constant or +500 F intermittent. FKM (Viton™) also offers excellent chemical, gas & oil resistance which makes it a good choice for a variety of applications.