Everbilt 3/8 in. x 1/2 in. Galvanized Bonded Sealing Washer (4-Piece)

These bonded sealing washers feature dual sides. The metal side absorbs the pressure of a nail head or screw, while the neoprene side forms a tight, water-resistant seal. Ideal for use outdoors in metal applications, these washers feature a rust-resistant finish for durability.