Conversion table Thread BSP
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home navigate_next About us navigate_next Customerservice navigate_next Conversion table Thread BSP

Conversion table Thread BSP

Inch size Diameter External thread in MM. Diameter Internal Thread in MM. Diameter External thread in Inch Diameter Internal Thread in Inch
(in) (mm) (mm) (in) (in)
​1⁄16 7.723 6.561 0.3041 0.2583
​1⁄8 9.728 8.566 0.3830 0.3372
​1⁄4 13.157 11.445 0.5180 0.4506
​3⁄8 16.662 14.950 0.6560 0.5886
​1⁄2 20.955 18.631 0.8250 0.7335
​5⁄8 22.911 20.587 0.9020 0.8105
​3⁄4 26.441 24.117 1,04 0.9495
​7⁄8 30.201 27.877 1,19 1,10
1 33.249 30.291 1,31 1,19
​1 1⁄8 37.897 34.939 1,49 1,38
​1 1⁄4 41.910 38.952 1,65 1,53
​1 3⁄8 44.323 41.365 1,75 1,63
​1 1⁄2 47.803 44.845 1,88 1,77
​1 5⁄8 52.883 49.926 2,08 1,97
​1 3⁄4 53.746 50.788 2,12 2,00
​1 7⁄8 56.998 54.041 2,24 2,13
2 59.614 56.656 2,35 2,23
​2 1⁄4 65.710 62.752 2,59 2,47
​2 1⁄2 75.184 72.226 2,96 2,84
​2 3⁄4 81.534 78.576 3,21 3,09
3 87.884 84.926 3,46 3,34
​3 1⁄4 93.980 91.022 3,70 3,58
​3 1⁄2 100.330 97.372 3,95 3,83
​3 3⁄4 106.680 103.722 4,20 4,08
4 113.030 110.072 4,45 4,33
​4 1⁄2 125.730 122.772 4,95 4,83
5 138.430 135.472 5,45 5,33
​5 1⁄2 151.130 148.172 5,95 5,83
6 163.830 160.872 6,45 6,33
7 189.230 185.979 7,45 7,32
8 214.630 211.379 8,45 8,32
9 240.030 236.779 9,45 9,32
10 265.430 262.179 10,45 10,32