#8 x 3" Pocket Hole Screw #2 Square Drive Washer Head Zinc, Pkg 1500 FCB Bypass Framing Fixed Clip Connectors 5 inch lally columns and Quad 5 inch lally columns and Quad 2x10 12 girders but is also available in a wide range of other sizes The seat of the column cap features additional surface area beyond the side of the column to allow added area of bearing to distribute the load from the beam and provide enhanced support for the connection The coarse thread screws are great for use with soft woods like pine and also work well with plywood and other engineered woods The zinc coating reduces friction during installation and helps prevent corrosion