The Simpson Strong-Tie® Strong-Bolt® 2 wedge-type expansion anchor in a mechanically galvanized finish can be used where a high-load-resisting anchor is needed for exterior applications. It has the same dual undercutting embossments on each clip segment as the zinc-electroplated version. Suitable for horizontal, vertical and overhead applications, the STB2-MG anchor is tested in uncracked concrete in accordance with AC193 and also in uncracked masonry in accordance with AC01. Strong-Bolt® 2 — 5/8 in. x 4-1/2 in. Mechanically Galvanized Wedge Anchor (20-Qty) (Pack of 360).