A premium decking screw using the C2 twin-cut technology. Coated with a patented multi-layer corrosion resistant plating to withstand up to 1,000 hours in a salt spray cabinet. This new and innovative design enables the screw to rapidly penetrate the timber, cleanly countersink and securely clamp the decking board to the joists. CE Standard Web BS EN 14592:2008 Colour Green Corrosion Rating 3 - Urban & industrial areas with a low salt atmosphere Description A premium decking screw using the C2 twin-cut technology. Coated with a patented multi-layer corrosion resistant plating to withstand up to 1,000 hours in a salt spray cabinet. This new and innovative design enables the screw to rapidly penetrate the timber, cleanly countersink and securely clamp the decking board to the joists. Driver Bit Size TX20 Driver Bit Type TX Drive Finish Exterior (Green Organic) Gauge 9 Head Dia. mm 7.98 Head Type Countersunk with Ribs Included Items TX20 S2 Bit (Qty 1) Inner Thread Dia. mm 2.70 Length inch 2 Length mm 50 Material Carbon Steel Pack Dimensions L x W x H mm 114 x 152 x 82 Pack Weight kg 0.920 Point Type Twin-Cut Product Code 50C2D250 Recess Type TX Drive Shank Type Helix Size imp. 9 x 2 Size mm 4.5 x 50 Thread Dia. mm 4.5 Thread Length mm 32 Thread Type 40° Single Deep