Designed as an alternative to the traditional coach screw mainly used for timber to timber applications. Coated with a patented multi-layer corrosion resistant plating to withstand 1,000 hours salt spray test, this screw is ideal for external applications. Hex head countersunk with a fixed washerLong lasting plating withstands up to 1,000 hours salt spray resistance in accordance to BS EN 9227:2014Patented lubrication, designed to enhance screw insertion time and provides greater resistance to corrosion Helix shank for removing debris and to improve clamping50° deep single thread to provide a secure fixing with high pull-out resistance Single slash point to reduce torque and the risk of timber splitting at low edge distance25° sharp point and single lead for a fast start and improved thread acceptance" Thread Dia. mm - 6.7Length mm - 150Thread Length mm - 52Head Type - Hex FlangeRecess Type - N/APoint Type - 25° Sharp with Single SlashSocket Size mm - 8Finish - Exterior (Green Organic)Material - Carbon Steel