I think mine are similar, but a different brand. I'd have to look back thru my build thread to jog my memory.
I ordered mine direct from the "manufacturer" (importer), specified the version for thick doors, and keyed alike. My doors will end up at 1-3/4 thk (5 mm or 3/16 inner ply, 1-1/2 foam, and I am guessing that the canvas and paint outer skin will add about 1/16 inch). They had a fleet option that would have a master key, but they were universally the same. I wanted more security than that, so they agreed to select two sets that were of the same key code (there are only so many variations). By going direct I paid quite a bit more than a lot of the online sources, but I got what I wanted. I did have to wait for "the shipment to arrive" (which is what clued me off to the fact that they were farming them out to Asia, and the screws weren't long enough to suit the listed wall thickness for the extra thick wall version (probably put the std wall thickness screw set in with the thick wall latches), but the bolt shaft and latch release levers are longer to suit the thicker doors.
Regarding hasps, padlocks, and other external hardware; you don't want to use anything that can accidentally, unintentionally, or maliciously become latched from the outside while you are inside. Safety first.