A bone plate (1) includes a first through hole (9) extending through the plate along a first longitudinal axis (6) from a proximal surface (7) of the plate to a bone-facing distal surface thereof which, when the plate is placed on a target portion of bone in a desired orientation, faces the bone. A wall (10) of the first through hole includes three wall sections (15) provided with projections for receiving a screw head of a bone screw. The three wall sections are straight or convex.
