I just picked up the 70-905 bed extension for my Rikon 70-050VS mini lathe. Nothing was "included" with the purchase. I'm trying to figure out how the bed extension attaches to the bed of the lathe. There seem to be two screws (allen screws?) vertically from the top of the ways of the extension that protrude though the two slots in the end of the extension bed that attach to the lathe bed. I "think" these might be what I'm seeing called leveling screws.

But how are the two (lathe and extension) supposed to attach to one another? Are there supposed to be two bolts that go from the extension into the lathe? Do they screw into the lathe, or just pass through with a nut?

Anyone's help would be appreciated. Thanks.