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上海市松江区茸梅路345号3栋
Attention!
Please do not mistake this thread for the Whitworth Fine Thread BS 84.
This thread is an old one which is not used anymore. The nominal diameter and
the pitch are mentioned in millimeters or in TPI.
The flank angle is 55°.
| Thread Size | Bolt Diameter | Nut Diameter | TPI | Pitch |
| mm | mm | mm | ||
| W 20 x 1/10" | 19.62 | 20 | 10 | 2.54 |
| W 22 x 1/10" | 21.62 | 22 | 10 | 2.54 |
| W 24 x 1/10" | 23.62 | 24 | 10 | 2.54 |
| W 27 x 1/10" | 26.62 | 27 | 10 | 2.54 |
| W 30 x 1/10" | 29.62 | 30 | 10 | 2.54 |
| W 33 x 1/10" | 33.62 | 33 | 10 | 2.54 |
| W 36 x 1/8" | 35.53 | 36 | 8 | 3.175 |
| W 39 x 1/8" | 38.53 | 39 | 8 | 3.175 |
| W 42 x 1/8" | 41.53 | 42 | 8 | 3.175 |
| W 45 x 1/8" | 44.53 | 45 | 8 | 3.175 |
| W 48 x 1/8" | 47.53 | 48 | 8 | 3.175 |
| W 52 x 1/8" | 51.53 | 52 | 8 | 3.175 |
| W 56 x 1/6" | 55.37 | 56 | 6 | 4.23 |
| W 60 x 1/6" | 59.37 | 60 | 6 | 4.23 |
| W 64 x 1/6" | 63.37 | 64 | 6 | 4.23 |
| W 68 x 1/6" | 67.37 | 68 | 6 | 4.23 |
| W 72 x 1/6" | 71.37 | 72 | 6 | 4.23 |
| W 76 x 1/6" | 75.37 | 76 | 6 | 4.23 |
| W 80 x 1/6" | 79.37 | 80 | 6 | 4.23 |
| W 84 x 1/6" | 83.37 | 84 | 6 | 4.23 |
| W 89 x 1/6" | 88.37 | 89 | 6 | 4.23 |
| W 94 x 1/6" | 93.37 | 94 | 6 | 4.23 |
| W 99 x 1/6" | 98.37 | 99 | 6 | 4.23 |
| W 104 x 1/6" | 103.37 | 104 | 6 | 4.23 |
| W 109 x 1/6" | 108.37 | 109 | 6 | 4.23 |
| W 114 x 1/6" | 113.37 | 114 | 6 | 4.23 |
| W 119 x 1/6" | 118.37 | 119 | 6 | 4.23 |
| W 124 x 1/6" | 123.37 | 124 | 6 | 4.23 |
| W 129 x 1/6" | 128.37 | 129 | 6 | 4.23 |
| W 134 x 1/6" | 133.37 | 134 | 6 | 4.23 |
| W 139 x 1/6" | 138.37 | 139 | 6 | 4.23 |
| W 144 x 1/6" | 243.37 | 144 | 6 | 4.23 |
| W 149 x 1/6" | 248.37 | 149 | 6 | 4.23 |
| W 154 x 1/6" | 253.37 | 154 | 6 | 4.23 |
| W 159 x 1/6" | 258.37 | 159 | 6 | 4.23 |
| W 164 x 1/6" | 253.37 | 164 | 6 | 4.23 |
| W 169 x 1/6" | 268.37 | 169 | 6 | 4.23 |
| W 174 x 1/6" | 263.37 | 174 | 6 | 4.23 |
| W 179 x 1/6" | 278.37 | 179 | 6 | 4.23 |
| W 184 x 1/6" | 183.37 | 184 | 6 | 4.23 |
| W 189 x 1/6" | 188.37 | 189 | 6 | 4.23 |
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