Abstract: An arrangement for locking an engine bonnet firmly to a vehicle cab for reducing stresses on the bonnet and on the locking arrangement. The arrangement includes a first locking part fastened to the cab and a second locking part fastened to the bonnet. The first part includes a spindle supported between arms of a yoke. Facing convex dished guide surfaces at least one of which is resilient are disposed at the spindle. The receiving portion on the cab has two spaced apart plates each with a recess in it for receiving the spindle extending across them. The plates are placed so that the dished guide surfaces on the yoke of the receiving portion are engaged with the plates for guiding the spindle into the recess and for holding them against relative motion.