BA Thread Gauges
BA (British Association) Threads are used for fine fastening purpose especially in instruments.
Specification:
Basic Dimensions – BS 93: 1951 & Gauging Practice – BS 919 Part II: 2007.
Manufacturing Range:
Thread Plug Gauges, Thread Ring Gauges, and Check Plug & Wear Check Plug Gauges for sizes 2, 3, 4, 5, 6, 7
| Pitch in mm | Type of Thread Gauges used |
|
|
|
2 | 0.81 | Thread Plug Gauges Tolerance class :
| Thread Ring Gauges Tolerance class : | Check Plug Gauges to check NEW Ring Gauges. | Wear Check Plug Gauges to check / calibrate used Ring Gauges. |
3 | 0.73 | ||||
4 | 0.66 | Normal (N) | Normal (N) | Normal (N) | Normal (N) |
5 | 0.59 | ||||
6 | 0.53 | Close (C) | Close (C) | Close (C) | Close (C) |
7 | 0.48 |