Designed for use on cracked and uncracked concrete, the Strong-Bolt 2 wedge anchor is made of carbon steel and features a redesigned, tri-segmented clip made of a special high-strength alloy. It is available in 3/8-in. diameter and will be available in 1/2-in. and 5/8-in. diameters soon. The 3/8-in. wedge anchor can be used for lightweight concrete applications, including concrete over metal decking, and is available in type 316 stainless steel. Simpson Strong-Tie