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Pipe Thread Dimensional Data per. EN 10226-1 Calculator
Thread size =
1/16
1/8
1/4
3/8
1/2
3/4
1
1-1/4
1-1/2
2
2-1/2
3
4
5
6
in
Number of threads in 25,4 mm =
#
e
Pitch P =
mm
Height if thread h =
mm
Diameter at gauge plane
d = D, Major (gauge dia.)
=
mm
d
2
= D
2
, Pitch P =
mm
d
1
= d
2
, minor =
mm
Gauge length (external threads)
Nominal
mm
Tolerance T
1
/ 2 =
mm
b
Turns of thread T
1
/ 2 =
#
Max. =
mm
Min. =
mm
Assembly length
length =
mm
b
Turns of thread
=
#
Length of useful eexternal thread not less than
Nominal gauge length =
mm
maximum gauge length =
mm
minimum gauge length =
mm
Tolerance on position of gauge plane on internal thread
Tolerance T
1
/ 2 =
mm
b
d
Turns of thread T
1
/ 2 =
#
Eqiv. Diametral tol.
a
Parallel thrds. =
mm
b
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