| Thread symbol | Kinds of thread | Related Standard |
| UN | Unifi ed inch screw threads | ANSI B 1.1 |
| UNC/UNRC | Unifi ed coarse thread series | ANSI B 1.1 |
| UNF/UNRF | Unifi ed fi ne thread series | ANSI B 1.1 |
| UNEF/UNREF | Unifi ed extra-fi ne thread series | ANSI B 1.1 |
| 4UN/4UNR | Unifi ed constant-pitch series with 4-threads | ANSI B 1.1 |
| 6UN/6UNR | Unifi ed constant-pitch series with 6-threads | ANSI B 1.1 |
| 8UN/8UNR | Unifi ed constant-pitch series with 8-threads | ANSI B 1.1 |
| 12UN/12UNR | Unifi ed constant-pitch series with 12-threads | ANSI B 1.1 |
| 16UN/16UNR | Unifi ed constant-pitch series with 16-threads | ANSI B 1.1 |
| 20UN/20UNR | Unifi ed constant-pitch series with 20-threads | ANSI B 1.1 |
| 28UN/28UNR | Unifi ed constant-pitch series with 28-threads | ANSI B 1.1 |
| 32UN/32UNR | Unifi ed constant-pitch series with 32-threads | ANSI B 1.1 |
| UNS/UNRS | Unifi ed threads of special diameters, pitches and lengths of engagement | ANSI B 1.1 |
| NR | American National thread with a 0.108p to 0.144p controlled root radius | MIL-B-7838 |
| Acme | Acme screw threads | ANSI B 1.5 |
| Stub-Acme | Stub Acme screw threads | ANSI B 1.8 |
| Butt | Buttress inch screw threads | ANSI B 1.9 |
| UNM | Unifi ed miniature thread series | ANSI B 1.10 |
| NC5 | Class 5 interference-fi t thread | ANSI B 1.12 |
| NPT | American Standard taper pipe threads tor general use | ANSI/ASME B 1.20.1 |
| NPTR | American Standard taper pipe threads tor railing joints | ANSI/ASME B 1.20.1 |
| NPSC | American Standard straight pipe thread in pipe couplings | ANSI/ASME B 1.20.1 |
| NPSL | American standard straight pipe threads for loose-fi tting mechanical joints with locknuts | ANSI/ASME B 1.20.1 |
| NPSM | American Standard straight pipe threads for free-fi tting mechanical joints for fi xture | ANSI/ASME B 1.20.1 |
| NPSH | American Standard straight pipe threads tor loose-fi tting mechanical joints for hose couplings | ANSI/ASME B 1.20.1 |
| NPTF | Dryseal American Standard taper pipe threads | ANSI B 1.20.3, 1.20.4 |
| F-PTF | Dryseal fi ne taper pipe thread series | ANSI B 1.20.3, 1.20.4 |
| PTF-SAE SHORT | Dryseal SAE short taper pipe threads | ANSI B 1.20.3, 1.20.4 |
| PTF-SPL SHORT | Dryseal special short taper pipe threads | ANSI B 1.20.3, 1.20.4 |
| PTF-SPL EXTRA SHORT | Dryseal special extra short taper pipe threads | ANSI B 1.20.3, 1.20.4 |
| SPL-PTF | Dryseal special taper pipe threads | ANSI B 1.20.3, 1.20.4 |
| NPSI | Dryseal American Standard intermediate internal straight pipe threads | ANSI B 1.20.3, 1.20.4 |
| NPSF | Dryseal American Standard fuel internal straight pipe threads | ANSI B 1.20.3, 1.20.4 |
| ANPT | Aeronautical National Form taper pipe threads | MIL-P-7150 |
| NGO | National gas outlet threads | ANSI B 57.1 |
| NGS | National gas straight threads | ANSI B 57.1 |
| NGT | National gas taper threads | ANSI B 57.1 |
| SGT | Special gas taper threads | ANSI B 57.1 |
| NH | Hose coupling and fi rehose coupling threads | USAS B 2.4 |
| NHR | Hose coupling and fi rehose coupling threads | USAS B 2.4 |
| NPSH | Hose coupling and fi rehose coupling threads | USAS B 2.4 |
| AMO | American standard microscope objective threads | ANSI B 1.11 |
Обший каталог Yamawa 2016 - 2017
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