Hose clip with a tensioning screw, tensioning screw and tool for driving the tensioning screw

摘要

The hose clamp (1) has a clamping band (2) and a housing (3), in which a clamping screw (4) is arranged, where the clamping screw has a screw head (5) and a threaded shaft (6). The screw head has a convex curved surface (8), in which three indentations (9) are provided. The convex curved surface is turned away from the threaded shaft. An independent claim is also included for a tool for tightening a hose clamp.