Hooked cams are most likely to be used on tambour locks and are quite common on key cabinets and cash boxes. Each lock manufacturer makes their own type of cam fixing point. Shapes vary from a simple square, to a cross giving four potential fixing positions. Lowe and Fletcher produce a hexagonal one which can be fixed in eight different positions.

Hooked cams can also be cranked/offset. The length of a hooked cam is measured differently from the others as the important dimension is the location of the hook. So instead of measuring from the centre of the cam hole to the end of the cam, you measure to the edge of the hook. The use of a hook can be used to fit behind a slot on such devices as a cashbox for example which will lock the device securely.