Simpson Strong Tie THD75700H 3/4" x 7" Titen HD Heavy Duty Screw Anchor for Concrete / Masonry Tilt-up Version 5 per Box 3/4" x 7" Use with 3/4" Diameter Drill Bit Use with 1-1/8" Wrench or Socket 5 per Box Zinc plated, Carbon steel, heat treated