These neoprene flat washers, or grommets, provide a tight moisture barrier to seal out liquids and gas and also help cushion the nut or bolt head. It is the same washer used in a bonded sealing washer. The package size designates the inner diameter of the washer. Used in applications with nuts and bolts or screws where moisture prevention is a concern.
California residents: see Proposition 65 information
- 1-piece per pack
- Rubber construction
- Black finish
- 1/2 in.