1. I-NPT, i-PT, intambo ye-G iyakhethwa.
2. Umbala womkhono wombhobho unokwenziwa ngokwezifiso.
3. Uhlobo olukhethekileyo lwee-ftings nalo lunokwenziwa ngokwezifiso
Umbhobho we-intshi | Umbhobho weMetric | ∅D | B |
SPU5/32 | SPU-4 | 4 | 33 |
SPU1/4 | SPU-6 | 6 | 35.5 |
SPU5/16 | SPU-8 | 8 | 39 |
SPU3/8 | SPU-10 | 10 | 46 |
SPU1/2 | I-SPU-12 | 12 | 48 |
/ | I-SPU-14 | 14 | 49 |
/ | I-SPU-16 | 16 | 68 |