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. Key Features: --Hex head with countersunk design and fixed washer --Patented lubrication enhances insertion speed and improves corrosion resistance --Helix shank for debris removal and improved clamping --50° deep single thread ensures strong fixing with high pull-out resistance --Single slash point minimizes torque and reduces the risk of timber splitting at low edge distances --25° sharp point with single lead ensures a fast start and better thread engagement Ideal for those looking for durability and ease of use in timber construction.