A fastening clamp for holding objects on a profiled support reliably secures the objects to the profiled support for extended periods of time. The clamp has two clamping brackets which are disposed opposite to each other in a clamping direction and delimit a clamping gap configured to receive a leg of the profiled support. At least one connection web is rigidly connected to the clamping brackets, a clamp element pressing device is connected to the clamping brackets and configured to generate a clamping force in the clamping direction, a transverse clamping unit is fastened to the clamping brackets or to one of the connection webs and has a clamping tongue configured to reach behind the profiled support, and a clamping tongue contact pressure device is connected to the transverse clamping unit and configured to apply a transverse clamping force to the clamping tongue.

An overhead line clamp (100) securable to an overhead line (2), the overhead line clamp (100) comprising: pincer members (102); a hinge (104) to enable the pincer members (102) to actuate between an open position and a closed position, wherein at the closed position the pincer members (102) are configured to secure the overhead line (2); and a hand-operable latch (108) configured to actuate the pincer members (102) between the open position and the closed position.