Ribber Fixings and bearings Type Length Diameter Qty Used On hex head bolt 50 M5 2 Fix ribber to CSM hex head bolt 40 M5 1 Ribber Clamp for tappet plate hex head screw 25 M5 2 Dial fixing, one extra per dial assembly standard nut n/a M5 5 Dial fixing, ribber mounting bracket, clamp for ribber tappet plate, two extra per dial assembly Half nut n/a M5 1 Top knob retention nut hex head screw 16 M3 2 ribber gate knobs standard nut n/a M3 2 ribber gate knobs nylon washer n/a M3 2 ribber gate knobs self tapping screw blunt point 9.5 [3/8”] 2.9 [No 4] 4 Ribber gate hinge self tapping screw blunt point 16 [5/8”] 3.5 [No 6] 4 Dial pusher to spider self tapping screw blunt point 9.5 [3/8”] 3.5 [No 6] 8 Fix fin to dial, beam spacers, two extra per dial/fin assembly Bearings 6900 2RS or 6900ZZ 10 bore x 22 dia x 6 wide 1 dial bearing, one per dial assembly