
| Material Specifi c MS | |
| ZELX NI PO STI | |
| HSS-P NX ANSI | M MF UNC/UNF UNS8122032UN |
| , , , , UNEF | |
| G(BSP) Rp (BSPP) Rc(BSPT) NPT | |
| NPTF NPSC,NPSM,NPSF BSW | |
| 537 | EG(STI),M,MF,UNC/UNF P |
| g Tr | |
| S miniature Special threads | |
| Vc (m/min) | P1 |
| H 5÷15 | P2 P3 |
| H 5÷15 | P4 |
| I 5÷10 | P5 P6 |
| H 5÷15 | P7 |
| H 4÷8 | P8 |
| H 5÷15 | M1 |
| H 5÷15 H 4÷8 | M2 M3 |
| K1 | |
| K2 K3 | |
| K4 | |
| N1 N2 | |
| N3 | |
| N4 | |
| H 5÷10 | N5 S1 ( |
| H 5÷10 I 3÷6 | S2 ( S3 (35 ÷ 45 HRC) S5 H (45 ÷ 55 HRC) H (55 ÷ 63 HRC) |