'Raincoat Clasps?"

[Jocker]

I'm looking for a source of these hook and eye closures. I had them on a raincoat when I was a child, and haven't seen much of them since. They're also sometimes seen on vintage galoshes. I saw them on someone's jacket recently (hence the 'Hook" and 'Eye' photos) and when I contacted the manufacturer they offered no help. I've found hardware called 'Fireman's Clasps' which are similar but not the same. What are these really called, and where might I find them?

 

[Digit]

Do you happen to know if those clasps can somehow open or not? If they don't open then I think this seems to be a variation on a hook and eye closure. If they do open they could be a variation on a firefighter closure. If I search for fireman closures I only find carabiner-like closures though. Variations on hook-and-eye seem to be named hook-and-bar, but that seems to be more targeted for pants.

Maybe you could search for large/elaborate hook-and-eye/bar closures and combine the hook part of it with an eyelet to achieve a similar look?