Chain lock

A chain lock comprising

• a lock body, which has a first closure part, a second closure part, and a combination locking mechanism that is aligned along a lock axis, and
• a bolt that has a bolt mandrel, which can be introduced into the lock body, and that can be selectively locked to the lock body by the combination locking mechanism,
• wherein the lock body has a chain connection part that is permanently connected to the bolt via a chain, wherein the chain connection part and the bolt are aligned coaxially to one another in a locked state of the bolt,
• wherein the combination locking mechanism comprises a plurality of rotatable code setting rings that are arranged between the first closure part and the second closure part of the lock body,
• wherein the lock body comprises a housing sleeve that has an access window via which the code setting rings are accessible for a manual rotation,
• wherein the lock body has, at a first end associated with the chain connection part, at least one first fastening pin that engages through the housing sleeve into an annular groove of the chain connection part such that the chain connection part is rotatably supported at the housing sleeve, and
• wherein the lock body has, at a second end associated with the bolt, at least one second fastening pin that engages through the housing sleeve into the second closure part of the lock body and that fixes the second closure part to the housing sleeve.