21. Thread Series
Unified Threads Conversion Table
| S Column | ize Column | Nomi | nal Dia. | Coarse | Fine | Extra Fine | | Thre | adsper C | inch onstantp | itch seri | es | | |
| 1 | 2 | inch | mm | UNC | UNF | UNEF | 4UN | 6UN | 8UN | 12UN | 16UN | 20UN | 28UN | 32UN |
| No. 0 | | 0.0600 | 1.524 | | 80 | | | | | | | | | |
| No 1 | 00730 | 1854 | 64 | 72 | | | | | | | | | |
| N | . | . | . | | | | | | | | | | | |
| o. 2 | | 0.0860 | 2.184 | 56 | 64 | | | | | | | | | |
| No. 4 N 5 | No. 3 | 0.0990 0.1120 01250 | 2.515 2.845 3175 | 48 40 40 | 56 48 44 | | | | | | | | | |
| o. No. 6 No. 8 N 10 | | . 0.1380 0.1640 01900 | . 3.505 4.166 4826 | 32 32 24 | 40 36 32 | | | | | | | | | UNC UNC UNF |
| o. | No. 12 | . 0.2160 | . 5.486 | 24 | 28 | 32 | | | | | | | UNF | UNEF |
| 1/4 | | 0.2500 | 6.350 | 20 | 28 | 32 | | | | | | UNC | UNF | UNEF |
| 5/16 | | 0.3125 | 7.938 | 18 | 24 | 32 | | | | | | 20 | 28 | UNEF |
| 3/8 7/16 | | 0.3750 0.4375 | 9.525 11.112 | 16 14 | 24 20 | 32 28 | | | | | UNC 16 | 20 UNF | 28 UNEF | UNEF 32 |
| 1/2 9/16 | | 0.5000 0.5625 | 12.700 14.288 | 13 12 | 20 18 | 28 24 | | | | UNC | 16 16 | UNF 20 | UNEF 28 | 32 32 |
| 5/8 | | 0.6250 | 15.875 | 11 | 18 | 24 | | | | 12 | 16 | 20 | 28 | 32 |
| 11/16 | 0.6875 | 17.462 | | | 24 | | | | 12 | 16 | 20 | 28 | 32 |
| 3/4 | | 0.7500 | 19.050 | 10 | 16 | 20 | | | | 12 | UNF | UNEF | 28 | 32 |
| 13/16 | 0.8125 | 20.638 | | | 20 | | | | 12 | 16 | UNEF | 28 | 32 |
| 7/8 | 15/16 | 0.8750 0.9375 | 22.225 23.812 | 9 | 14 | 20 20 | | | | 12 12 | 16 16 | UNEF UNEF | 28 28 | 32 32 |
| 1 | | 1.0000 | 25.400 | 8 | 12 | 20 | | | UNC | UNF | 16 | UNEF | 28 | 32 |
| 1 1/8 | 1 1/16 1 3/16 | 1.0625 1.1250 1.1875 | 26.988 28.575 30.162 | 7 | 12 | 18 18 18 | | | 8 8 8 | 12 UNF 12 | 16 16 16 | 20 20 20 | 28 28 28 | |
| 1 1/4 | | 1.2500 | 31.750 | 7 | 12 | 18 | | | 8 | UNF | 16 | 20 | 28 | |
| 1 3/8 | 1 5/16 | 1.3125 1.3750 | 33.338 34.925 | 6 | 12 | 18 18 | | UNC | 8 8 | 12 UNF | 16 16 | 20 20 | 28 28 | |
| 1 1/2 | 1 7/16 1 9/16 | 1.4375 1.5000 1.5625 | 36.512 38.100 39.688 | 6 | 12 | 18 18 18 | | 6 UNC 6 | 8 8 8 | 12 UNF 12 | 16 16 16 | 20 20 20 | 28 28 | |
| 1 5/8 | | 1.6250 | 41.275 | | | 18 | | 6 | 8 | 12 | 16 | 20 | | |
| 1 11/16 | 1.6875 | 42.862 | | | 18 | | 6 | 8 | 12 | 16 | 20 | | |
| 1 3/4 | | 1.7500 | 44.450 | 5 | | | | 6 | 8 | 12 | 16 | 20 | | |
| 1 7/8 | 1 13/16 1 15/16 | 1.8125 1.8750 1.9375 | 46.038 47.625 49.212 | | | | | 6 6 6 | 8 8 8 | 12 12 12 | 16 16 16 | 20 20 20 | | |
| 2 | 2 1/8 | 2.0000 2.1250 | 50.800 53.975 | 4.5 | | | | 6 6 | 8 8 | 12 12 | 16 16 | 20 20 | | |
| 2 1/4 | | 2.2500 | 57.150 | 4.5 | | | | 6 | 8 | 12 | 16 | 20 | | |
| 2 1/2 | 2 3/8 2 5/8 | 2.3750 2.5000 2.6250 | 60.325 63.500 66.675 | 4 | | | UNC 4 | 6 6 6 | 8 8 8 | 12 12 12 | 16 16 16 | 20 20 20 | | |
| 2 3/4 3 | 2 7/8 | 2.7500 2.8750 3.0000 | 69.850 73.025 76.200 | 4 4 | | | UNC 4 UNC | 6 6 6 | 8 8 8 | 12 12 12 | 16 16 16 | 20 20 20 | | |
| 3 1/4 | 3 1/8 | 3.1250 32500 | 79.375 82550 | 4 | | | 4 UNC | 6 6 | 8 8 | 12 12 | 16 16 | | | |
| 3 3/8 | . 3.3750 | . 85.725 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 3 1/2 | | 3.5000 | 88.900 | 4 | | | UNC | 6 | 8 | 12 | 16 | | | |
| 3 5/8 | 36250 | 92075 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 3 1/4 | | . 3.7500 | . 95.250 | 4 | | | UNC | 6 | 8 | 12 | 16 | | | |
| 3 7/8 | 3.8750 | 98.425 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 4 | | 4.0000 | 101.600 | 4 | | | UNC | 6 | 8 | 12 | 16 | | | |
| 4 1/8 | 41250 | 104775 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 4 1/4 | 4 3/8 | . 4.2500 4.3750 | . 107.950 111.125 | | | | 4 4 | 6 6 | 8 8 | 12 12 | 16 16 | | | |
| 4 1/2 | | 45000 | 114300 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 4 3/4 | 4 5/8 | . 4.6250 4.7500 | . 117.475 120.650 | | | | 4 4 | 6 6 | 8 8 | 12 12 | 16 16 | | | |
| 4 7/8 | 48750 | 123825 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 5 | | . 5.0000 | . 127.000 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 5 1/4 | 5 1/8 | 5.1250 5.2500 | 130.175 133.350 | | | | 4 4 | 6 6 | 8 8 | 12 12 | 16 16 | | | |
| 5 3/8 | 5.3750 | 136.525 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 5 1/2 | | 5.5000 | 139.700 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 5 5/8 | 5.6250 | 142.875 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 5 3/4 | | 5.7500 | 146.050 | | | | 4 | 6 | 8 | 12 | 16 | | | |
| 6 | 5 7/8 | 5.8750 6.0000 | 149.225 152.400 | | | | 4 4 | 6 6 | 8 8 | 12 12 | 16 16 | | | |
| Threads per inch (25.4mm) | Pitch (mm) |
| 100 | SP 0.2540 |
| 80 | 0.3175 |
| 72 | 0.3528 |
| 64 | 0.3969 |
| 60 | 0.4233 |
| 56 | 0.4536 |
| 48 | 0.5292 |
| 44 | 0.5773 |
| 40 | SL 0.6350 |
| 36 | 0.7056 |
| 32 | 0.7938 |
| 28 | 0.9071 |
| 27 | 0.9407 |
| 24 | 1.0583 |
| 20 | 1.2700 |
| 19 | PO 1.3368 |
| 18 | 1.4111 |
| 16 | 1.5875 |
| 14 | 1.8143 |
| 13 | 1.9538 |
| 12 | 2.1167 |
| 11.5 | 2.2087 |
| 11 | ST 2.3091 |
| 10 | 2.5400 |
| 9 | 2.8222 |
| 8 | 3.1750 |
| 7 | 3.6286 |
| 6 | 4.2333 |
| 5 | 5.0800 |
| 4.5 | ROLL 5.6444 |
| 4 | 6.3500 |
6 6.0000 152.400 4 6 8 12 16 GAUGES
General size list of metric trapezoidal threads
THREAD
| 1.5 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 |
| Tr18 | 1.5 | | | | | | | | | |
| Tr19 | 1.5 | 2 | | | | | | | | |
| Tr 10 | 1.5 | 2 | | | | | | | | |
| Tr 11 | | 2 | 3 | | | | | | | |
| Tr 12 | | 2 | 3 | | | | | | | |
| Tr 14 | | 2 | 3 | | | | | | | |
| Tr 16 | | 2 | | 4 | | | | | | |
| Tr 18 | | 2 | | 4 | | | | | | |
| Tr 20 | | 2 | | 4 | | | | | | |
| Tr 22 | | | 3 | | 5 | | | 8 | | |
| Tr 24 | | | 3 | | 5 | | | 8 | | |
| Tr 26 | | | 3 | | 5 | | | 8 | | |
| Tr 28 | | | 3 | | 5 | | | 8 | | |
| Tr 30 | | | 3 | | | 6 | | | 10 | |
| Tr 32 | | | 3 | | | 6 | | | 10 | |
| Tr 34 | | | 3 | | | 6 | | | 10 | |
| Tr 36 | | | 3 | | | 6 | | | 10 | |
| Tr 38 | | | 3 | | | | 7 | | 10 | |
| Tr 40 | | | 3 | | | | 7 | | 10 | |
| Tr 42 | | | 3 | | | | 7 | | 10 | |
| Tr 44 | | | 3 | | | | 7 | | | 12 |
| Tr 46 | | | 3 | | | | | 8 | | 12 |
| Tr 48 | | | 3 | | | | | 8 | | 12 |
Обший каталог Yamawa 2016 - 2017
Краткое руководство Yamawa по каталогам
Общий каталог Yamawa 2022 - 2023
Каталоги Yamawa твердосплавные метчики для закаленной стали