The airplane was substantially damaged at 1358 Mountain time following a loss of directional control and subsequent runway excursion during landing. The private pilot and three passengers were not injured. Visual conditions prevailed Shortly after touchdown on the dry, hard-surface runway, the airplane veered right. The pilot later stated it touched down on the mains first and when the nosewheel settled to the ground, a significant vibration was noted and the airplane veered right. The main landing gear collapsed during the runway excursion.