Black Iron Door Handles Sold as a set Black Finish Fixings included 158mm x 38mm The manufacturing process of our superb range of Old Hill Ironworks hand-finished accessories combines the highest quality malleable cast iron, together with the increased endurance of a stainless steel inner mechanism. Our malleable cast iron has the best shock resistance and is ductile, with mechanical properties of elasticity and impact strength, making it the ideal material for use in this high quality range. The powder coating process creates a premium decorative antique black finish which will protect your product for a lifetime.