Our Marine-Grade A4 stainless steel penny-washers provide maximum corrosion resistance for salt-water marine environments. The superior corrosion resistance of these A4 grade penny washers make them a great choice for sailing, motor boating and water-sports applications. Also popular with 4x4 and off-roading (mud-guard washers).
The large diameter of these penny-washers (sometimes called repair washers) are preferred for attaching flexible or thin materials such as rubber, floor boards, outboard brackets etc. Penny washers are a great choice for through-deck fittings on sailing boats.