What you want him to replace a 'Grubby Screw' ?
I understand it wasn't as clean as stated but what you wanting him to refund, The money for a few screw's or is there any other part that isn't working due to it's state ?
Mate, it is all sorted now and I am sorry to the buyer if I have done any harm (emotionally) or ruined his reputation or his teams which I am sure I haven't. Please delete thread asap mods. Thanks