An interlocking device for use with rectangular containers, such as metal
ammunition containers having a top lid, is shown. The interlocking device
comprises a substantially flat plate, coextensive with the top lid of the
containers, and having a set of locking tabs to attach to the top lid. The
device also has a set of positioning tabs to engage the bottom of another
container, when such containers are stacked. The device is attached to
similar devices by a set of interconnection mechanisms, which may be
male-female connectors located along each edge of the device, such that
the interlocking mechanisms on the front and rear edges of the device are
of opposite interlocking design and the locking mechanism on the front
edge of one device will demountably interlock with the locking mechanism
on the rear edge of another device. In addition, the interlocking
mechanism on each lateral side edge of the device are of opposite
interlocking design and the locking mechanism on one lateral edge of one
device will demountably interlock with the interlocking mechanism on the
opposite side of another device.