Steel hook only used to grab car doors.
Proaim 6″, 1ft, 2ft, 4ft, 6ft Speed Rail/Scaff Tube —
Speed Rail Car Mounting Kit
Hub Rail 4 Hook - Wall Mounted Coat Rack
Speed Rail Parts – Grip Support Store
Speed-Rail® Door Mount Hook Only – Grip Support Store
Steelton Stainless Steel Speed Rail Hanger - 2/Pack
Speed-Rail® Door Mount Hook Only – Grip Support Store
Door Mount Kit for 1-1/4 Speed-Rail® – Modern Studio Equipment.
Speed Rail Car Mounting Kit