I want to somehow get an M5 insert into a 7.5mm diameter hole in solid steel. (The hole has already been drilled with 7.5mm DeWalt cobalt-tipped drill bit.)
Is there such a thing as a threaded insert that is suitably constructed to be able to go into solid steel? Some have external threads, some have that rough/raised diamond pattern on the exterior instead. I'm not sure what might work. How about something I could hammer in, if the insert's diameter is finely tuned to be just above 7.5mm?
Here are some threaded inserts "for metal and plastic". I have no idea if something like this may work, or how to insert it properly.
Any advice is much appreciated. Thanks