Rotary clamping latches GN 116.1 features distinguished wide clampings in the range of 12 mm, with 5 keys A1 to A5 covering a clamping range of 4 to 49 mm with broad overlap. The special configuration enables large closing strokes within the individual key spacings, e.g. in connection with seals. The clamping screw offers 2 Nm of permissible tightening torque to generate approx. 300 Nm of closing force at the key.