A patient support surface module for supporting a patient body parthas a locking device with a plug bolt for engaging a receiving opening in a patient table or the like. A bolt element is movably accommodated in a through opening in the plug bolt, and a longitudinal axis of the through opening extends at an acute angle relative to a longitudinal axis of the plug bolt. The bolt element can engage a receiving opening for securing the plug bolt in the receiving opening. An actuating element is operably connected to the bolt element for moving the bolt element and the locking device between locked and released positions.
