This set includes a plastic plate with an 11 x 31 grid of 3 mm holes spaced 5 mm apart, which provides space for many mechanical connections. The two included eight-hole angle brackets can connect the plate to additional Universal Plates or can serve as a mounting point for an axle. The plate set also includes two shaft mounts (the triangular brackets in the picture on the right) for supporting an axle. The kit provides ten screws and ten nuts for connecting the angle brackets and shaft mounts to the plate.
11 x 31 grid of 3 mm holes spaced 5 mm apart (60 x 160 mm, 2.36" x 6.30")