I was just installing a set of dunlop strap locks in place of the old shaller strap buttons and the head of the screw in the dulop strap lock broke off from the rest of the screw while being installed into the but end of the instrument! I wasn't using a freakish amount of force or anything since it is my most valuable bass and i didn't want to stress the screws in as it is. Its current situation is the screw is a little over 1/8" exposed from the instrument and there is no good way to grip it with pliers to try to back it out. The strap button itself is not on the instrument as it came off with the head of the screw. I just dont understand why this happend. Is there some way this screw has a manufacturer's deffect? I am completely lost as to what to do. Please help if you can or give me ideas on what to do. If i cant do it with your help i'll be taking it to the Builder of the bass to see if he can help me with anything. Thank you for any help.