Anyone ever seen the likes of this? Found it in the boat whilst removing/replacing carpet and upholstery for an upgrade.
Bigger hole is threaded, smaller is not thru...
might be a type of locking device similiar to the OMC shift cable adjustment.Threads on to make/set and adjustment and the small hole accepts a both to hold it in place.
just have to use a locking drawback and a ball that has a weld bead on it. (well, at least a drawback lock, otherwise you aren't even slowing anyone down.)