In reply to RupertD: It fell off I'm afraid, hanger fell down the rope to the 1st quickdraw. Only found the nut on the ground once we'd stripped the route. Going on instinct, I'd be wary of screwing it up by hand, but I've done very little sport climbing and would appreciate a steer from those who know their stuff. I certainly wouldn't want to leave a potentially unsafe bolt in the route. Definately glad it didn't happen falling onto that bolt.
What should we have done? Asked climbers on a neighbouring route to swing over and replace it? I guess we should have checked each bolt when we first started to work the route... Using a nutkey as Mark says seems like a good improvisation, but how are hangers screwed on standardly?
