Diameter
size
(A) |
Nominal
diameter
(B) |
Applicable
pipe
outer
diamete |
Size
code |
Screw
diameter |
General
purpose |
Size
code |
W1/4 thread |
Size
code |
W5/16 thread |
Size
code |
W3/8 thread |
Size
code |
W1/2 thread |
Size
code |
W5/8
thread |
o |
g |
r |
o |
g |
r |
o |
g |
r |
o |
g |
r |
o |
g |
r |
o |
g |
r |
@@8A
@10A
@15A
@20A
@25A |
1/4
3/8
1/2
3/4
P |
@13.8
@17.3
@21.7
@27.2
@34.0 |
0137
0141
0156 |
W5/16
W5/16
W5/16 |
@31
@36
@43 |
@32
@35
@38 |
24
24
28 |
0014
0029
0033
0048
0052 |
@21
@25
29.5
@34
@41 |
23
26
28
32
34 |
18
18
18
18
25 |
0137
0141
0156 |
31
36
43 |
32
35
38 |
24
24
28 |
0180
0194
0207 |
@32
@38
@44 |
@33
@34
@37 |
25
25
25 |
|
|
|
|
|
|
|
|
@32A
@40A
@50A
@65A
@80A |
P 1/4
P 1/2
Q
Q 1/2
R |
@42.7
@48.6
@60.5
@76.3
@89.1 |
0175
0226
0245
0250
0264 |
W5/16
W3/8
W3/8
W3/8
W3/8 |
@52
@60
@72
@87
100 |
@43
@51
@57
@69
@75 |
28
35
35
35
35 |
0067
0071
0086
0103
0118 |
50.5
@57
@70
@83
@96 |
39
42
47
59
67 |
25
25
25
30
30 |
0175
|
52
|
43
|
28
|
0211
0226
0245
0250
0264 |
@53
@60
@72
@87
100 |
@43
@51
@57
@69
@75 |
28
35
35
35
35 |
0320
0334
0349
0353 |
@62
@74
@90
103 |
@71
@73
@81
@84 |
40
50
50
50 |
|
|
|
|
@90A
100A
125A
150A
200A |
R 1/2
S
T
U
W |
101.6
114.3
139.8
165.2
216.3 |
0279
0283
0372
0387
0404 |
W3/8
W3/8
W1/2
W1/2
W1/2 |
113
125
153
180
232 |
@81
@88
102
115
152 |
35
35
54
54
54 |
0122
|
125
|
77
|
33 |
|
|
|
|
0279
0283
0298
0315
|
113
125
152
180 |
@81
@88
108
117 |
35
35
55
58 |
0368
0372
0387
0404 |
128
153
180
232 |
@97
102
115
152 |
50
54
54
54 |
0419
0423
0438 |
158
184
236 |
104
121
161 |
50
60
70 |
250A
300A
350A
400A
450A |
PO
PQ
PS
PU
PW |
267.4
318.5
355.6
406.4
457.2 |
0442
0457
0461
|
W5/8
W5/8
W5/8
|
286
337
373
|
188
214
232
|
80
80
80 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0442
0457
0461 |
286
337
373 |
188
214
232 |
80
80
80 |
500A |
QO |
508.0 |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |