A SCREW CAP

There is provided a screw cap (1) for a screw head, including a tubular body, having an end wall at a distal end portion and an opening at a proximal end portion along a centre axis; at least one first coupling member arranged coaxially to said centre axis at said distal end portion, adapted to retainingly receive at least a portion of a first-type screw head; and at least one second coupling member arranged coaxially with, and axially proximal to, said at least one first coupling member, adapted to retainingly receive at least a portion of a second-type screw head. The screw cap may be used to accommodate both wheel fasteners and anti-theft wheel fasteners.