Well, howdy, Mr Klemm! Good to see you’re still around.
As Kit Bear says, they were made in numbers, and yes, Hodson was one of the main makers. Without access to the Willenhall trade directories, I can’t say how many others there were. These locks were exported in great quantity through more than a century – nearly all of Hodson’s production going to South American customers, for example.
As for not very secure: very few people know anything of lockpicking, and if you were a gaucho who did not have the key, these are physically robust.
They are also very forgiving of uneven staples on doors/gates which are out of line, and will work without lubrication. Sure, they are rough and stiff, but also inexpensive (no, cheap was the right word first time.)
They probably went to British colonies as well, but would rarely appear specifically in cargo manifests (some of which can be seen online by searching through the reports of shipping arrivals in foreign ports in local newspapers around the world. The British Library Newspaper Library has many now online, for anyone on whose hands time hangs heavily.) They would just be listed as ‘padlocks’ or ‘assorted locks’ amongst the assorted ironmongery being imported.