Can a new sill be screwed/bolted to the existing floor panel?

Hello All,

I am currently destroying my Range Rover in an attempt to replace the inner and outer sills. I bought a complete outer sill which comes with holes pre drilled for older Range Rovers to be screwed into place. My question is can I use these holes to screw (or in my case bolt) the floor in. Ok let me rephrase that question, I know I can do it (I have) will that be sufficient for an M.O.T test? This will be the only place where bolts will be used, I have welded all the other places where it needs it.

As a mot tester it needs to be repaired to the manufactures standards ie spot weld for spot weld, fully welded for fully welded. Hope that helps you