Speaker Stand Knob (5/16 bolt)

thingiverse

I've relied on this model twice now for fixing speaker stands, one that had a loose knob and another that had a stripped screw. The knob demands a 5/16 bolt (both times I've used a 2 inch bolt for the stands I've repaired).\r\n\r\nThe tolerances are deliberately close-fitting. After printing the model the bolt is screwed into the knob nearly all the way, then the hex head of the bolt is heated with a torch until the knob can be slid the rest of the way down the bolt.