A clamping device in the form of a bracket for use in clamping a fuel injection nozzle to the cylinder head of an internal combustion engine. The clamping device has a generally flat top portion and a pair of legs extending therefrom which together define a U-shaped cross-sectional profile. The top portion includes a slot for receiving a portion of the injection nozzle while the free ends of the legs bear against flat portions of the injection nozzle.