Stubby1743
Well-known member
BA (British Association) threads are a useful and logical range of threads for small fasteners used in electrical equipment, precision instruments and model engineering. I used them a lot when building audio amplifiers in the 1970's. Before that my AM10 model aircraft engine used an 0BA thread on it's prop shaft.
An 0BA nut is about 0.41" across the flats and so is not a near fit for any standard imperial, or metric socket size. Gordon obviously felt that the user of one of their socket sets may well encounter 0BA fasteners in the course of their work. Smaller BA sizes are more appropriately accommodated by 1/4" drive sockets.
An 0BA nut is about 0.41" across the flats and so is not a near fit for any standard imperial, or metric socket size. Gordon obviously felt that the user of one of their socket sets may well encounter 0BA fasteners in the course of their work. Smaller BA sizes are more appropriately accommodated by 1/4" drive sockets.
