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 |