Existing Concrete Post Channel Bracket for 4″x4″ dimensional lumber. The overall dimensions are 8″H x 3-5/8″ inside dimension x 3/16″x 3″ 316L Stainless Steel flat bar. Bolt hole diameters are 5/8″. There is one 3/4″ diameter hole center of the bottom of bracket. Bracket requires two 1/2″ x 4-1/2″ 316L bolts and one 1/2″ x 5-1/2″ 316L Stainless Steel wedge anchor stud.