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Conversion table for thread sizes


Thread size
(G/ BSP)
ø Diameter outside
(mm)
ø Diameter inside
(mm)
G 1/16" 7.723 6.561
G 1/8" 9.728 8.566
G 1/4" 13.157 11.445
G 3/8" 16.662 14.950
G 1/2" 20.955 18.631
G 5/8" 22.9111 20.587
G 3/4" 26.441 24.117
G 7/8" 30.201 27.877
G 1" 33.249 30.291
G 1 1/8" 37.897 34.939
G 1 1/4" 41.910 38.952
G 1 1/2" 47.803 44.845
G 1 3/4" 53.746 50.788
G 2" 59.614 56.656
G 2 1/4" 65.710 62.752
G 2 1/2" 75.184 72.226
G 2 3/4" 81.534 78.576
     
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*No rights can be derived from the dimensions as indicated.
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