Round Countersunk made specifically for the small, no screws or wood screws with washer, and these and the decorative effect is born. Black Zinc Plated for durability. [Features] · Small round countersunk head screw/wood screws and to use, the decorative effect is created. The beam in the seat and processing is not required to be. Black zinc plated for appearance. [HOW TO USE] (1) Round Small Countersunk Screw/Wood Screws and Washers. (2) it is excellent in corrosion resistance, Black you can use these materials and convenient to match with other colors.