Thanks for all the replys,would it be possible to put the lock nut in then to strenghen it up by welding the joint?I also looked at this one that says you have to join the two parts together and its abit cheaper compared to the flatpack onehttp://www.amazon.co.uk/Molecatching-Mole-Run-Probe/dp/B008ESVTMI/ref=sr_1_1?ie=UTF8&qid=1382075810&sr=8-1&keywords=mole+probe