Abstract: The present invention relates to a twist-lock (104a-d) and a method for controlling a twist-lock to be connected to a container (102) for locking two containers together. The method comprises to match the remotely controlled twist-lock (104a-d) with the container (102), wherein unique identifiers are registered for said twist-lock and said container, storing said identifier information in a database. Further the unlocking function of said twist-lock is remotely controllable by means of a remote control unit (104).

Abstract: A turnbuckle comprises first and second fastening parts, the first fastening part having a first end fitting and a first rod-shaped portion, and the second fastening part having a second end fitting and a second rod-shaped portion, at least the first of which rod-shaped portions is formed with threads. The turnbuckle further comprises a tightening device comprising first and second tightening members, each having an outer end piece and an inner end piece. The outer end piece of at least the first tightening member has a threaded through-hole to receive in screw engagement the threaded rod portion of the first fastening part. The inner end piece of the second tightening member has a threaded through-hole also to receive in screw engagement the threaded rod portion of the first fastening part. The tightening device is arranged to assume at least two different elongation conditions.