Silicon bronze wood screws series silicon bronze is an alloy with mostly copper and a thin amount of silicon.\n\nsilicon bronze is used primarily in marine environments, wooden boats and restoration. it is preferred over stainless steel in wooden boat construction and re-fastening due to its excellent corrosion resistance and over brass due to its higher strength. \n\nstandards: ansi, bs, din, jis etc. specifications: head type: flat head, oval head, round head etc. drive type: phillips, square, slotted, phillips /slotted, pozi etc.