【Sturdy & Durable】These track jamb brackets are made from heavy galvanized steel plating resists rust and corrosion, long life. 【Highly Compatible】Suitable for garage doors up to 2" thick. Suitable for most types of garage doors. Can be used as A joint bracket or A jamb bracket. 【Easy to Install】Install the garage door track on the door frame. Pre-cut with slots for fasteners, no cutting or drilling required. 【Track Jamb Bracket】Garage door jamb bracket size J6, type size 06. 【Package Includes】4 packs track jamb bracket, including screws. 【Sturdy & Durable】These track jamb brackets are made from heavy galvanized steel plating resists rust and corrosion, long life. 【Highly Compatible】Suitable for garage doors up to 2" thick. Suitable for most types of garage doors. Can be used as A joint bracket or A jamb bracket. 【Easy to Install】Install the garage door track on the door frame. Pre-cut with slots for fasteners, no cutting or drilling required. 【Track Jamb Bracket】Garage door jamb bracket size J6, type size 06. 【Package Includes】4 packs track jamb bracket, Including mounting screws.