A composite to metal joint (10) for torsional shafts is disclosed that will not fail in simple shear and can be manufactured without slipping, bridging, or kinking of the filament using a filament winding machine. The composite to metal joint includes a filament composite (16) formed by winding the filament with the filament winding machine around a metal mandrel (12). The mandrel (12) has an outer surface (14) upon which said filament composite (16) is formed with a cross sectional shape that is asymmetrical about an axis of rotation (24). Also, the outer surface (14) presents a positive angle of incidence to said filament when said filament winding machine winds hoop plies and angle plies.