Quote:
Originally Posted by Herald1360
I don't think I've ever seen a BA bolt, though they may exist. Plenty of (set) screws though.  |
BA
bolts are frequently used by model engineers. They often have hexagon heads a size smaller than standard to give a better scale appearance.
Vintage radios generally use
set screws though.
Bolts have an unthreaded portion under the head. Set screws are threaded right up to the head.