Rubber (EPDM) Bonded Washers
18-8 Stainless Steel

Rubber (Neoprene) EDPM Bonded Sealing Washers
Rubber Bonded Sealing Washers are used to create a waterproof seal when used under the head of a Stainless Hex Head Sheet Metal (Self Tapping) Screw or a Stainless Self-Drilling Screw.