Simpson Strong-Tie mechanical anchors are designed to install easily and securely into a variety of base materials, including concrete, grouted and hollow CMU and brick. Specifiers and contractors trust Simpson Strong-Tie anchors for optimum performance under the most demanding structural applications. The Strong-Bolt 2 is a wedge-type expansion anchor designed for optimal performance in cracked and uncracked concrete as well as uncracked masonry. The Strong-Bolt 2 is available in carbon steel, Type 304 and Type 316 stainless steel. Strong-Bolt® 2 — 5/8 in. x 5 in. Type 316 Stainless-Steel Wedge Anchor (10-Qty) (Pack of 80).