Port Size & Bolt Size Charts
Size Charts & Tables
SAE O-Ring
|
DASH NO.
|
SIZE
(nominal) |
O.D.
(inch) |
O.D.
(inch) |
TPI
(thread/inch) |
|---|---|---|---|---|
|
2
|
1/8″
|
5/16″
|
0.3125
|
27
|
|
3
|
3/16″
|
3/8″
|
0.375
|
24
|
|
4
|
1/4″
|
7/16″
|
0.4375
|
20
|
|
5
|
5/16″
|
1/2″
|
0.500
|
20
|
|
6
|
3/8″
|
9/16″
|
0.5625
|
18
|
|
8
|
1/2″
|
3/4″
|
0.750
|
16
|
|
10
|
5/8″
|
7/8″
|
0.875
|
14
|
|
12
|
3/4″
|
1-1/16″
|
1.0625
|
12
|
|
14
|
7/8″
|
1-3/16″
|
1.1875
|
12
|
|
16
|
1″
|
1-5/16″
|
1.3125
|
12
|
|
20
|
1-1/4″
|
1-5/8″
|
1.625
|
12
|
|
24
|
1-1/2″
|
1-7/8″
|
1.875
|
12
|
|
32
|
2″
|
2-1/2″
|
2.500
|
12
|
JIC 37°
|
DASH NO.
|
SIZE
(nominal) |
O.D.
(inch) |
O.D.
(inch) |
TPI
(thread/inch) |
|---|---|---|---|---|
|
2
|
1/8″
|
5/16″
|
0.3125
|
27
|
|
3
|
3/16″
|
3/8″
|
0.375
|
24
|
|
4
|
1/4″
|
7/16″
|
0.4375
|
20
|
|
5
|
5/16″
|
1/2″
|
0.500
|
20
|
|
6
|
3/8″
|
9/16″
|
0.5625
|
18
|
|
8
|
1/2″
|
3/4″
|
0.750
|
16
|
|
10
|
5/8″
|
7/8″
|
0.875
|
14
|
|
12
|
3/4″
|
1-1/16″
|
1.0625
|
12
|
|
14
|
7/8″
|
1-3/16″
|
1.1875
|
12
|
|
16
|
1″
|
1-5/16″
|
1.3125
|
12
|
|
20
|
1-1/4″
|
1-5/8″
|
1.625
|
12
|
|
24
|
1-1/2″
|
1-7/8″
|
1.875
|
12
|
|
32
|
2″
|
2-1/2″
|
2.500
|
12
|
Code 61 Flange
|
DASH NO.
|
SIZE
(nominal) |
Port I.D.
(inch) |
O-Ring
Size |
Bolt Thread
|
Bolt Pattern
(minor) |
Bolt Pattern
(major) |
|---|---|---|---|---|---|---|
|
8
|
1/2″
|
0.500
|
-210
|
5/16 – 18
|
0.688
|
1.500
|
|
12
|
3/4″
|
0.750
|
-214
|
3/8 – 16
|
0.875
|
1.875
|
|
16
|
1
|
1.000
|
-219
|
3/8 – 16
|
1.031
|
2.063
|
|
20
|
1-1/4″
|
1.250
|
-222
|
7/16 – 14
|
1.188
|
2.313
|
|
24
|
1-1/2″
|
1.500
|
-225
|
1/2 – 13
|
1.406
|
2.750
|
|
32
|
2″
|
2.000
|
-228
|
1/2 – 13
|
1.688
|
3.063
|
|
40
|
2-1/2″
|
2.500
|
-232
|
1/2 – 13
|
2.000
|
3.500
|
|
48
|
3″
|
3.000
|
-237
|
5/8 – 11
|
2.438
|
4.188
|
|
56
|
3-1/2″
|
3.500
|
-241
|
5/8 – 11
|
2.750
|
4.750
|
|
64
|
4″
|
4.000
|
-245
|
5/8 – 11
|
3.062
|
5.125
|
|
80
|
5″
|
5.000
|
-253
|
5/8 – 11
|
3.625
|
6.000
|
Code 62 Flange
|
DASH NO.
|
SIZE
(nominal) |
Port I.D.
(in) |
O-Ring
Size |
Bolt Thread
|
Bolt Pattern
(minor) |
Bolt Pattern
(major) |
|---|---|---|---|---|---|---|
|
8
|
1/2″
|
0.500
|
-210
|
5/16 – 18
|
0.718
|
1.594
|
|
12
|
3/4″
|
0.750
|
-214
|
3/8 – 16
|
0.937
|
2.000
|
|
16
|
1
|
1.000
|
-219
|
7/16 – 14
|
1.093
|
2.250
|
|
20
|
1-1/4″
|
1.250
|
-222
|
1/2 – 13
|
1.250
|
2.625
|
|
24
|
1-1/2″
|
1.500
|
-225
|
5/8 – 11
|
1.437
|
3.125
|
|
32
|
2″
|
2.000
|
-228
|
3/4 – 10
|
1.750
|
3.812
|
NPT
|
DASH NO.
|
SIZE
(nominal) |
TPI
(thread/inch) |
O.D.
(in) |
|---|---|---|---|
|
1
|
1/16″
|
27
|
0.3125
|
|
2
|
1/8″
|
27
|
0.405
|
|
4
|
1/4″
|
18
|
0.540
|
|
6
|
3/8″
|
18
|
0.675
|
|
8
|
1/2″
|
14
|
0.840
|
|
12
|
3/4″
|
14
|
1.050
|
|
16
|
1″
|
11-1/2
|
1.315
|
|
20
|
1-1/4″
|
11-1/2
|
1.660
|
|
24
|
1-1/2″
|
11-1/2
|
1.900
|
|
32
|
2″
|
11-1/2
|
2.375
|
|
40
|
2-1/2″
|
8
|
2.875
|
|
48
|
3″
|
8
|
3.500
|
|
56
|
3-1/2″
|
8
|
4.000
|
|
64
|
4″
|
8
|
4.500
|
|
80
|
5″
|
8
|
5.563
|
|
96
|
6″
|
8
|
6.625
|
Unified Bolt
|
NO.
|
DIAMETER
(in) |
COARSE TPI
(thread/inch) |
FINE TPI
(thread/inch) |
|---|---|---|---|
|
#0
|
0.060″
|
–
|
80
|
|
#1
|
0.073″
|
64
|
72
|
|
#2
|
0.086″
|
56
|
64
|
|
#3
|
0.099″
|
48
|
56
|
|
#4
|
0.112″
|
40
|
48
|
|
#5
|
0.125″
|
40
|
44
|
|
#6
|
0.138″
|
32
|
40
|
|
#8
|
0.164″
|
32
|
36
|
|
#10
|
0.190″
|
24
|
32
|
|
#12
|
0.216″
|
24
|
28
|
|
–
|
1/4″
|
20
|
28
|
|
–
|
5/16″
|
18
|
24
|
|
–
|
3/8″
|
16
|
24
|
|
–
|
7/16″
|
14
|
20
|
|
–
|
1/2″
|
13
|
20
|
|
–
|
9/16″
|
12
|
18
|
|
–
|
5/8″
|
11
|
18
|
|
–
|
3/4″
|
10
|
16
|
|
–
|
7/8″
|
9
|
14
|
|
–
|
1″
|
8
|
14
|
|
–
|
1-1/8″
|
7
|
12
|
|
–
|
1-1/4″
|
7
|
12
|
|
–
|
1-1/2″
|
6
|
12
|
|
–
|
1-3/4″
|
5
|
–
|
|
–
|
2″
|
4-1/2
|
–
|
|
–
|
2-1/4″
|
4-1/2
|
–
|
|
–
|
2-1/2″
|
4
|
–
|
|
–
|
2-3/4″
|
4
|
–
|
|
–
|
3″
|
4
|
–
|
Metric Bolt
|
DIAMETER (mm)
|
COARSE
Pitch (mm) |
FINE
Pitch (mm) |
Alt. FINE
Pitch (mm) |
|---|---|---|---|
|
1
|
0.25
|
–
|
–
|
|
1.2
|
0.25
|
–
|
–
|
|
1.4
|
0.30
|
–
|
–
|
|
1.6
|
0.35
|
–
|
–
|
|
1.8
|
0.35
|
–
|
–
|
|
2
|
0.40
|
–
|
–
|
|
2.2
|
0.45
|
–
|
–
|
|
2.5
|
0.45
|
–
|
–
|
|
3
|
0.50
|
–
|
–
|
|
3.5
|
0.60
|
–
|
–
|
|
4
|
0.70
|
–
|
–
|
|
5
|
0.80
|
–
|
–
|
|
6
|
1.00
|
–
|
–
|
|
7
|
1.00
|
–
|
–
|
|
8
|
1.25
|
1.00
|
–
|
|
10
|
1.50
|
1.00
|
1.25
|
|
11
|
1.50
|
1.00
|
–
|
|
12
|
1.75
|
1.25
|
1.50
|
|
14
|
2.00
|
1.50
|
–
|
|
15
|
–
|
1.00
|
–
|
|
16
|
2.00
|
1.50
|
–
|
|
18
|
2.50
|
1.50
|
–
|
|
20
|
2.50
|
1.50
|
–
|
|
22
|
2.50
|
1.50
|
–
|
|
24
|
3.00
|
2.00
|
–
|
|
25
|
–
|
1.50
|
–
|
|
26
|
–
|
1.50
|
–
|
|
27
|
3.00
|
2.00
|
–
|
|
28
|
–
|
2.00
|
–
|
|
30
|
3.50
|
2.00
|
–
|
|
33
|
3.50
|
2.00
|
–
|
|
36
|
4.00
|
3.00
|
–
|
|
39
|
4.00
|
3.00
|
–
|
|
42
|
4.50
|
3.00
|
–
|
|
45
|
4.50
|
3.00
|
–
|
|
48
|
5.00
|
3.00
|
–
|
|
52
|
5.00
|
3.00
|
–
|
|
56
|
5.50
|
4.00
|
–
|
|
60
|
5.50
|
4.00
|
–
|
|
64
|
6.00
|
4.00
|
–
|
|
68
|
6.00
|
4.00
|
–
|
|
72
|
–
|
6.00
|
–
|
|
76
|
–
|
6.00
|
–
|
|
80
|
–
|
6.00
|
–
|
|
85
|
–
|
6.00
|
–
|
|
90
|
–
|
6.00
|
–
|
|
95
|
–
|
6.00
|
–
|
|
100
|
–
|
6.00
|
–
|
