The TÜNKERS pin clamps offer a clamping function “below component level“ for clamping in sheet apertures, centring of retainers or borings. The alternative equipment with fully immersing swivelling clamping hook or clamping hook guided in a centring mandrel facilitates an extremely compact installation design, as the tool disappears below the component level. All pin clamps are supplied in fully enclosed construction and feature an integrated end position sensing in cartridge design.