| Буквенное обозначение | Страна | Угол вершины профиля, ° | Описание (расшифровка буквенного обозначения) |
|---|---|---|---|
| ISO | 60° | International Organization for Standardization | |
| NC | USA | 60° | National Coarse |
| UNC | USA | 60° | Unified National Coarse |
| NF | USA | 60° | National Fine |
| UNF | USA | 60° | Unified National Fine |
| UNEF | USA | 60° | Unified National Extra Fine |
| UN | USA | 60° | Unified National 8-, 12- and 16 pitch series |
| UNS | USA | 60° | Special Threads of American National Form |
| NPT | USA | 60° | National Taper Pipe 1:16 |
| NPTF | USA | 60° | National Taper Pipe Dryseal 1:16 |
| NPS | USA | 60° | National Standard Straight Pipe |
| NPSM | USA | 60° | National Standard Straight Pipe for free fitting mechanical |
| NPSF | USA | 60° | National Standard Internal Straight Pipe Dryseal |
| BSW | GB | 55° | British Standard Withworth Coarse |
| BSF | GB | 55° | British Standard Fine |
| BSP | GB | 55° | British Strandard Pipe |
| BSPT | GB | 55° | British Standard Pipe Taper |
| BA | GB | 47° | British Standard Association |