Rubber Washers are made of EPDM Rubber, these rubber washers are compounded speciﬁcally for maximum resistance to weathering due to ozone and ultraviolet light.
The outside diameter dimensions listed as standard are based on “Pan Head” metal screw dimensions delineated in U.S.A.S. B 19.6.4. The outside diameters listed as optional are based on standard S.A.E. steel washers common to the trade and are available in custom sizes.
Vibration or dampening
Standard thickness is 3/32”, additional thicknesses are available