1 4" x 3 3 4" Strong Tie Flat Head Titen Turbo Screw Anchor, White Zinc, Pkg 100 Truss Rafter Fastening Systems Lumber Size: Intended for use Lumber Size: Intended for use with Glulam posts columns The Low HP Hire blades can accurately cut a variety of different materials like concrete and asphalt while providing excellent blade life The Simpson Strong Tie Titen Turbo screw anchor is a heavy duty fastener that features an innovative torque reduction channel to trap drilling dust where it can't obstruct thread action This heavy duty fastener is code listed in accordance with ICC ES AC193 for uncracked concrete and ICC ES AC106 for masonry applications