Prior to making the last several wraps of thread, place a thin film of the 'Crazy Glue' on about 1-1/2 inch of the thread. Then make those last wraps. Hold the thread in place for a few seconds. That should create a good bond to the thread. Cut thread and then, just to make sure and to add a bit of gloss, apply a little of whatever you typically use for head cement. 'B' is a pretty heavy thread though.