YRK Hanger Bolt apply to install on both wooden rafter and steel purlin. Both types can be applied with L Foot and plate. There are three sizes most common use, M10x200mm, M12x200mm and M12x300mm Hanger bolt.
Attach to the roof to mount your aluminium profile rails to which the solar panel/photovoltaic systems are attached.
Hanger bolt applies to install on both wooden rafter and steel purlin. Both types can be applied with L feet or adapter plates.