The rotational angle of the key is 90° between points A and B. The key can be inserted or removed only at point A. The cam is sold separately. Please contact us for the different key type and key cap. Recommended tightening torque: [fixing nut]: 5.5N・m (56.1kgf・cm) [Hexagon Nut]: 2.5N・m(25.5kgf・cm) See the page "Notes for Using Locks".