Connecting bolts and associated connection protection

A connecting fitting comprising:

• a connecting bolt having a bolt shaft and a bolt head which has a radially outwardly protruding bolt projection and a latching projection between the bolt shaft and bolt projection at a side opposite the bolt projection, wherein a rear side of the bolt projection facing the bolt shaft is constructed as an inclined face which is inclined in relation to a longitudinal axis of the bolt shaft;
• and
• a sleeve which has a frontal sleeve opening and inside the sleeve both an inclined sleeve transverse face which is directed in a direction away from the sleeve opening and a latching recess which is arranged between the sleeve opening and sleeve transverse face at the side opposite the inclined sleeve transverse face, wherein the sleeve transverse face forms a wall of a jacket-sided open, lateral sleeve opening;
• wherein in the assembled state of the connecting fitting the bolt head is introduced into the sleeve opening and both the bolt projection engages with the inclined face thereof behind the inclined sleeve transverse face in the introduction direction of the connecting bolt and the latching projection is engaged in the latching recess.