Foot touching front wheel?

I have a 3TTT quill stem with a recessed hex bolt. It goes in about 1 cm and there must be a plastic plug/cap on top of it. Unfortunately I lost it. Maybe someone has one for me.

Also, it's normal for Shimano stems. Also recessed bolts, a couple of cm. deep. Need good tools (or an extra pipe that goes over the hex key). Also covered by a (screwed in) cap.
Again, I have one, but again, missing cap.

Not sure if its because the the quill has an expander at the bottom or what but its doesn't seem right to me.... It does go quite a bit down the tube, im assuming that there is supposed to be a ridge to stop the bolt going down which may have worn out... got it off ebay so will ask thr guy if he wants it back...

I suppose it prob makes no difference to be honest but just would rather it work properly... also its silver and the bars and other bits are black so looks pretty wank so hoping he takes it back!!