Aluminium WASHER 18mm WASHER for oil and hydraulic lines Special for Banjo fittings or banjo bolts made of aluminium or with anodisation Since copper washers can often cause corrosion with bare or anodised aluminium, we offer aluminium WASHERs. Perfect for our anodised hollow screws and Banjo fittings made of aluminium. As well as on compressor housings or oil cooler adapters. Dimensions: 18 x 24 x 1,5mm