All these fittings are manufactured from Grade 316 stainless steel and are supplied in brushed finish. They are suitable for use in external situations and damp environments where mild steel fittings would be prone to rusting. On the Continent they are used on houses and buildings in coastal locations. Please contact us for other similar products and different sizes. Please note that fixings are not supplied with these products. Please note these products are particularly suited for use with accoya wood.