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Appendix
Appendix
Installation & Maintenance
Assemblies
Equipment & Accessories
Fittings
Hoses
German Thread Types
Fitting Identification
Fitting Standards
Male 24° Cone
DIN 2353 24˚ Cone
Identification
Both male and female have straight metric threads. The
male has a 24-degree seat and a recessed counter bore
which matches the tube OD used with it. The female
can be any of three styles including a 24-degree cone
with an O-ring, a metric tube fitting, or a universal 24- or
60-
degree cone. Use a 12-degree gauge to measure
seat angle as the dimension is taken from the fitting
centerline.
Seal
Sealing takes place between the 24-degree seat in the
male end and the respective sealing area in the female end.
Comments
There is a light and heavy version of this coupling.
Proper identification is made by measuring the thread
size and tube OD. The heavy-duty version has a smaller
tube OD than the light-duty version, but has a thicker
wall section.
Thread Identification Table
DIN 2353 24° Cone
DIN 3863 60˚ Cone
Identification
Both male and female have straight metric threads.
Use a 30-degree gauge to measure seat angle as this
dimension is taken from the fitting centerline.
Seal
The male has a 60-degree seat. The female has a 24- or
60-
degree seat. The seal takes place by contact between
the 60-degree seat in the male end and the respective
sealing area in the female end.
Thread Identification Table
DIN 3863 60° Cone
Female 24° Cone
with O-Ring
Female Metric
Tube
Female Universal
24
° or 60° Cone
Metric
Thread
Female
Thread ID
Male
Thread OD
TubeOD
Light Series
Tube OD
Heavy Series
Dia. x Pitch mm in.
mm in.
mm in.
mm in.
M 12 x 1
f
10.5 0.41 12 0.47 6 0.24
M 14 x 1
f
12.5 0.49 14 0.55 8 0.31 6
0.24
M 16 x 1
f
14.5 0.57 16 0.63 10 0.39 8
0.31
M 18 x 1
f
16.5 0.65 18 0.71 12 0.47 10 0.39
M 20 x 1
f
18.5 0.73 20 0.79
12 0.47
M 22 x 1
f
20.5 0.81 22 0.87 15 0.59 14 0.55
M 24 x 1
f
22.5 0.89 24 0.94
16 0.63
M 26 x 1
f
24.5 0.96 26 1.02 18 0.71
DIN 2353 24° Cone (Continued on next column)
DIN 2353 24° Cone (Continued)
Metric
Thread
Female
Thread ID
Male
Thread OD
Tube OD
Light Series
Tube OD
Heavy Series
Dia. x Pitch mm.
in..
mm in.
mm in.
mm in.
M 30 x 2
28.5 1.12 30 1.18 22 0.87 20 0.79
M 36 x 2
33.9 1.33 36 1.42 28 1.10 25 0.98
M 42 x 2
39.9 1.57 42 1.65
30 1.18
M 45 x 2
42.9 1.69 45 1.77 35 1.38
M 52 x 2.
49.9 1.96 52 2.05 42 1.65 38 1.50
Male 60° Cone
Female 24° or 60° Cone
Metric
Thread
Female
Thread ID
Male
Thread OD
Tube OD
60
°
Cone
Dia. x Pitch
in.
mm in.
mm in.
M 12 x 1
f
10.5 0.41
12
0.47
6
0.24
M 14 x 1
f
12.5 0.49
14
0.55 8
0.31
M 16 x 1
f
14.5 0.57
16
0.63 10 0.39
M 18 x 1
f
16.5 0.65
18
0.71
12 0.47
M 22 x 1
f
20.5 0.81
22
0.87 15 0.59
M 26 x 1
f
24.5 0.96
26
1.02
18 0.71
M 30 x 2
28.5 1.12
30
1.18
22 0.87
M 38 x 2
36.5 1.44
38
1.50 28 1.10
M 45 x 2
43.5 1.71
45
1.77
35 1.38
M 52 x 2
50.5 1.99
52
2.05 42 1.65