Screw threads for aerospace construction, see 49.030.10
Items to be displayed:
| ICS | Field |
|---|---|
| 21.040.01 | Screw threads in general |
| 21.040.10 | Metric screw threads |
| 21.040.20 |
Inch screw threads
Including Whitworth screw threads Pipe threads, see 21.040.30 |
| 21.040.30 |
Special screw threads
Including miniature screw threads, pipe threads, etc. |
