The ST-12 (Jahn) “A” Brackets by Meadow Burke are made of high strength steel with a cadmium plated eccentric and a rust-resistant painted body. Designed for use with a single 2×4 waler, the bracket is used to hold either a single horizontal wale, or a single vertical stud. The bracket can be installed either before or after walers are in place. Slots in the bracket allow it to slip over the snap tie end. Loading from the bracket is against the 2×4 instead of the plywood. The “A” bracket uses 4-3/4” L&W snap ties. Bracket will not loosen from internal vibration of the concrete.