Innovative screw for decking featuring: • Sharp 25 degree spiral point with cut to reduce splitting of timber • Single thread • Clear unthreaded section on the shank to reduce friction • Short threaded section under the head to reduce board movement • Ribbed under the head for clean countersinking • Positive Reisser recess to fit their own driver bit • Nano coat for unparalleled corrosion resistance - MINIMUM 2000 hours protection on salt spray test. Longer than any other coated decking spray on the market!