A bolt module is disclosed. The bolt module comprises: a bolt moveable between a thrown position and a retracted position; an anti-thrust member moveable between a release position in which the bolt can be retracted and a plurality of blocking positions obstructing driving back of the bolt under action of an external force on the bolt and, a first rotor assembly capable of accepting a drive element, the first rotor assembly arranged to drive the bolt and to move the anti-thrust member between the plurality of blocking positions and the release position. Each of the plurality of blocking positions may respectively limit to different extents the driving back of the bolt under action of an external force on the bolt. There is also disclosed a leaf or door comprising the bolt module, wherein the bolt module is mounted on the leaf or door for securing the leaf or door.

A deadbolt system securing an access point includes a deadbolt and a deadbolt sensor configured to characterize the performance of the deadbolt. The deadbolt system generates a resistance signature when the deadbolt is moved between a retracted and extended position which is comparable to a threshold or a previously recorded resistance signature. The comparison may determine the presence of one or more performance inhibitors which may be conveyed to an operator through a local or remote indicator.

A bolt module is disclosed. The bolt module comprises: a bolt moveable between a thrown position and a retracted position; an anti-thrust member moveable between a release position in which the bolt can be retracted and a plurality of blocking positions obstructing driving back of the bolt under action of an external force on the bolt and, a first rotor assembly capable of accepting a drive element, the first rotor assembly arranged to drive the bolt and to move the anti-thrust member between the plurality of blocking positions and the release position. Each of the plurality of blocking positions may respectively limit to different extents the driving back of the bolt under action of an external force on the bolt. There is also disclosed a leaf or door comprising the bolt module, wherein the bolt module is mounted on the leaf or door for securing the leaf or door.

A deadbolt system securing an access point includes a deadbolt and a deadbolt sensor configured to characterize the performance of the deadbolt. The deadbolt system generates a resistance signature when the deadbolt is moved between a retracted and extended position which is comparable to a threshold or a previously recorded resistance signature. The comparison may determine the presence of one or more performance inhibitors which may be conveyed to an operator through a local or remote indicator.