
| SP STI | GP Gener PO STI | al Purpose HT STI | N-RS STI | AL-SP STI | MS Mate i AL-PO STI | rial Specifi c AL-HT STI | ZELX NI SP STI | |
| HSS-E NI | HSS-E | HSS-E | HSS-E NI | HSS-E NI | HSS-E | HSS-E | HSS-P NX | |
| ANSI | ANSI | ANSI | JIS | JIS | JIS | JIS | ANSI | |
| M MF | ||||||||
| UNC/UNF | ||||||||
| UNS,8,12,20,32UN | ||||||||
| UNEF G(BSP) Rp (BSPP) | ||||||||
| Rc(BSPT) | ||||||||
| NPT | ||||||||
| NPTF NPSC,NPSM,NPSF BSW | ||||||||
| EG(STI),M,MF,UNC/UNF P | 531 | 535 | 539 | 529 | 521 | 523 | 525 | 532 |
| g Tr | ||||||||
| S miniature Special threads | ||||||||
| P1 | I 5÷10 | I 5÷10 | I 5÷10 | Vc (m | /min) | I 5÷15 | ||
| P2 P3 P4 | I 5÷10 I 5÷10 | I 5÷10 I 5÷10 | I 5÷10 I 5÷10 | I 5÷15 H 5÷15 H 5÷15 | ||||
| P5 P6 | I 5÷10 | |||||||
| P7 | H 5÷15 | |||||||
| P8 | H 4÷8 | |||||||
| M1 | H 5÷15 | |||||||
| M2 M3 | H 5÷15 H 4÷8 | |||||||
| K1 | ||||||||
| K2 K3 | ||||||||
| K4 N1 | H 5÷15 | H 5÷15 | H 5÷15 | H 5÷15 | H 10÷25 | H 5÷15 | H 5÷15 | |
| N2 | H 515 | H 515 | H 515 | H 515 | H 1025 | H 515 | H 515 | |
| N3 | ÷ H 5÷15 | ÷ H 5÷15 | ÷ H 5÷10 | ÷ H 5÷15 | ÷ H 10÷25 | ÷ H 5÷15 | ÷ I 5÷10 | |
| N4 N5 | H 5÷15 | H 5÷15 | H 5÷10 | H 10÷25 | H 5÷15 | H 5÷10 | ||
| S1 ( S2 (35 HRC) | H 5÷10 H | |||||||
| S3 (35 ÷ 45 HRC) S5 H (45 ÷ 55 HRC) H (55 ÷ 63 HRC) | 5÷10 |