Simpson Strong Tie SDWS22400DB-R12 .220 x 4 in. Timber Screw

The Strong-Drive SDWS M5.6 Landscape Screw is designed for several common wood framing and engineered wood applications. This 100 mm screw provides an easy to install, high strength alternative to through bolting and traditional lag screws. This 4 Inch screw with 0.22 Inch shank, features stainless steel construction and double barrier coating for long lasting durability. It features patented SawTooth point that ensures fast starts, reduces installation torque and eliminates the need for pre-drilling in most applications. Screw has bold thread design for superior holding power where under head nib for greater control when seating the head. This screw has large low profile washer head to offer enhanced bearing area. With 6-lobe T-40 drive, this screw minimises driver bit cam outs resulting in easier installations and longer bit life.