0.22 x 4 5/8 Simpson Strong-Drive® SDW TRUSS-PLY Screw Black E-coat™ - Box (200) . The Strong-Drive® SDW Truss-Ply screw is a high-strength structural wood screw specifically designed for fastening multi-ply wood members, such as joining plated trusses and solid-sawn lumber. The SDW installs easily with no pre-drilling and is available in optimized lengths for fastening 2-, 3- and 4-ply trusses. With the SDW Truss-Ply screw, multi-ply trusses and beams can be fastened from one side without requiring the lifting and flipping of heavy assemblies. 

Features: 

• Large washer head provides maximum bearing area; stamped with the Simpson Strong?Tie “?” sign and fastener length for easy identification after installation
• Deep 6-lobe recess reduces cam-out, making driving easier
• Low-profile head results in less interference after installation; makes stacking and sliding members easier and allows installation of hardware and finishes to be virtually flush
• Higher shear values than competitive products enable wider spacing savi