Length 32 mm, head diameter 30 mm, thickness 12 mm, thread M10x12, Original Galfre

Length 34 mm, head diameter 30 mm, thickness 12 mm, thread M10x1.25 18 mm.

Length 28 mm, head diameter 30 mm, thickness 16 mm, thread M10x13, Original Kuhn

Length 34 mm, head diameter 30 mm, thickness 12 mm, M12 thread 18 mm, Original Kuhn