Triumph Steering Wheel Securing Nut -105438 The center Securing nut is what holds the steering wheel in position, so carefully disconnect any remaining wires and screws holding the original steering wheel in place. To suit vehicles Triumph Triumph Spitfire Triumph Herald Triumph Vitesse Triumph TR4 Triumph TR4a Triumph TR250 Triumph TR5 Triumph TR6 Triumph GT6 TR Register