Bulls Dartboard Fixing Bracket – Wall Hanger – with screws. The Bull’s U Fixing Bracket, is a Dartboard hanging system that is perfect applicable to all standard dartboards. It comes with two components, one component needs to be mounted on the wall and the other component needs to be mounted in the middle of the dartboard. The two components can be slid together making it a very easy to use accessory. Can be used on all standard dartboards and in cabinets as a hanging system. No need to re attach them when turning a board.