These four new precision wedge mounts are designed for leveling for heavy loads. Two are designed for cleanroom use; two are geared toward industrial applications. Two gentle inclines on each wedge reportedly produce a large lifting force with small input of torque. During the level adjustment, the head of the bolt does not move axially. This design is said improves the device’s ease of operation and safety (516) 328-3662, VibrationMounts.com.