Abstract: A locking device for a shipping container and system for redundantly locking container components together include a socket, upper and lower arms, upper and lower braces, and a clasp. The socket has upper and lower parts connected together to form a hinge at a rear of the socket with a socket cavity having an opening at a front of the socket. Also, the upper and lower arms of the device are fixedly connected to the upper and lower parts at the front of the socket. Further, the upper and lower braces of the device are fixedly connected to the upper and lower parts at the rear of the socket. The clasp is adapted to engage the socket to retain the socket and the components locked together in the assembled container.