1013 #13 Jamb Bracket. 12 Gauge galvanized steel.
Secure the upright frames on each side of your garage door opening with these No. 1013 J-13 #13 garage door jamb brackets from Garage Door Supply Company. This is a one-piece jamb/track bracket that's made of 12-gauge galvanized steel. To see if this is the right replacement bracket, look at the number stamped on the metal on your existing garage door jamb bracket.