Box Rail Roller Size: 78×43mm/3.1×1.7in; Bolt Size: M12×90mm; Design Load in 400kg/881lb; Confirm your size before placing an order
Quiet and Stable Performance: The trolley assembly adopts welded bearings and pins, which are very smooth and noiseless when in use. The bearing is welded and positioned to ensure the stability of the work
Long Term Use: Constructed from high-strength solid steel, impact resistant and galvanized for rust and corrosion protection. 2 nuts are prepared in the accessory, so that you can use the dollies upside down
Application: It’s suitable for 50mm/1.97in wide and all 43mm/1.69in or taller strut channel