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These neoprene flat washers 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.

Save on Everbilt 3/16 in. x 1-1/2 in. Black Neoprene Washer 815818 with a Home Depot coupon

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