We have designed this Door Latch to lock in place by making the two components snap together. Simply use our Tube Hinge as the hinge and weld our Door Latch at the other end of the tube. These are designed to lock in place with the two parts having .003 interference fit. This will allow the latch to snap closed and stay closed but also easy enough to open. We also supply a 3/8 ball lock pin to keep it shut.
These are designed for 1.75″ diameter tubing with a .095″ or .120″ wall tubing.