Eyebolt fishing magnet can be used for treasure hunting in the sea, river and lake.
Strong Pull force from 50kgf to 600kgf meet different underwater applications.
Magnet with Internal thread, easy to screw in and out eyebolt and hook.
Thread hole M6, M8, M10, M12, M14 and M16, multiple choices
Also good for mounting applications, holding & hanging some stuff.