A traditional heavy duty woodscrew with a nylon plug for masonry applications. Nylon plug has anti-rotation lugs to help prevent turning during installation" Thread Dia. mm: 6.0 Length mm: N/A Thread Length mm: 36 Head Type: Hex Recess Type: N/A Point Type: Sharp Driver Bit Size: N/A Finish: Zinc Material: Carbon Steel Timco Coach Screws & Nylon Plugs - Zinc (Size 6.0 x 60 - 40 Pieces) in Silver