Simpson 5/8" x 5" Titen HD Mechanically Galvanized Screw AnchorModel No. THDB62500HMG Coating Material. Mechanically Galvanized Carbon Steel Size (in.) 5 8 x 5 Drill Bit Dia. (in.) 5 8 Wrench Size (in.) 1 Thread Length (in.) 4 1 2 Recommended Fixture Hole Size (in.) 3 4 to 13 16 Component Material, Clip. Carbon Steel ASTM A 568 The Titen HD heavy duty screw anchor is a mechanically galvanized high strength screw anchor for use in cracked and uncracked concrete, as well as uncracked masonry. Its proprietary heat