A bone plate, comprising: a first through hole extending through the plate along a first longitudinal axis from a proximal surface 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, an outer wall of the first through hole including three wall sections provided with projections for receiving a screw head of a bone screw, the three wall sections being one of straight and convex, wherein the projections comprise one of thread and thread-like structure extending over an entire length of each of the wall sections, and wherein each of the wall sections has a proximal end at the proximal surface of the plate and a distal end at the distal surface of the plate; wherein the bone plate is characterised in that either: a depth of thread of the one of thread and thread-like structure decreases towards the proximal and distal ends of each of the wall sections, the depth of thread being greatest respectively at a center portion of the wall sections between the proximal and distal surfaces; or a depth of thread of the one of thread and thread-like structure increases towards the proximal and distal ends of each of the wall sections, the depth of thread being smallest respectively at a center portion of the wall sections between the proximal and distal surfaces. a first through hole extending through the plate along a first longitudinal axis from a proximal surface 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, an outer wall of the first through hole including three wall sections provided with projections for receiving a screw head of a bone screw, the three wall sections being one of straight and convex, wherein the projections comprise one of thread and thread-like structure extending over an entire length of each of the wall sections, and wherein each of the wall sections has a proximal end at the proximal surface of the plate and a distal end at the distal surface of the plate; wherein the bone plate is characterised in that either: a depth of thread of the one of thread and thread-like structure decreases towards the proximal and distal ends of each of the wall sections, the depth of thread being greatest respectively at a center portion of the wall sections between the proximal and distal surfaces; or a depth of thread of the one of thread and thread-like structure increases towards the proximal and distal ends of each of the wall sections, the depth of thread being smallest respectively at a center portion of the wall sections between the proximal and distal surfaces. a depth of thread of the one of thread and thread-like structure decreases towards the proximal and distal ends of each of the wall sections, the depth of thread being greatest respectively at a center portion of the wall sections between the proximal and distal surfaces; or a depth of thread of the one of thread and thread-like structure increases towards the proximal and distal ends of each of the wall sections, the depth of thread being smallest respectively at a center portion of the wall sections between the proximal and distal surfaces.