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GENERAL TORQUE SPECIFICATIONS
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
AMERICAN STANDARD CAP SCREWS
SAE
5
Grade
Typical
Grade ID
Markings
on Head
Cap
TORQUE
Screw
Size
FT-LBS
Inches
MIN
MAX
MIN
1/4-20
6.25
7.25
8.5
1/4-28
8
9
11
5/16-18
14
15
19
5/16-24
17.5
19
23
3/8-16
26
28
35
3/8-24
31
34
42
7/16-14
41
45
55.5
7/16-20
51
55
69
1/2-13
65
72
88
1/2-20
76
84
103
9/16-12
95
105
129
9/16-18
111
123
150
5/8-11
126
139
171
5/8-18
152
168
206
3/4-10
238
262
322
3/4-16
274
305
371
7/8-9
350
386
474
7/8-14
407
448
551
1-8
537
592
728
1-14
670
740
908
O-Ring Face Seal Hose/
Tube Swivel Nut
Metric
Thread
Size
Tube
Dash
O.D.
(in.)
Size
(mm)
5
-3
--
6
-4
9/16 - 18
8
-5
--
10
-6
11/16 - 16
12
-8
13/16 - 16
16
-10
1 - 14
20
-12
1-3/16 - 12
22
-14
1-3/16 - 12
25
-16
1-7/16 - 12
32
-20
1-11/16 - 12
38
-24
2 - 12
50.8
-32
--
Torque Specifications for
37° JIC Fittings
Assembly Torque
Thread
Size
in.·lb.
Size
-4
7/16-20
140 ± 10
-5
1/2-20
180 ± 15
-6
9/16-18
250 ± 15
-8
3/4-16
550 ± 25
-12
1 1/16-12
1000 ± 50
-16
1 5/16-12
1450 ± 50
-20
1 5/8-12
2000 ± 100
-24
1 7/8-12
2400 ± 150
-32
2 1/2-12
3200 ± 200
F-3778-12-04
© 2004 Alamo Group Inc.
MAINTENANCE
8
TORQUE
N·m
FT-LBS
N·m
MAX
MIN
MAX
MIN
MAX
10
8.25
9.5
11
13
12
10.5
12
14
16
20
18.5
20
25
27
26
23
25
31
34
38
35
37
47.5
50
46
41
45
55.5
61
61
55
60
74.5
81
74.5
68
75
92
102
97.5
86
96
116
130
114
102
112
138
152
142
127
140
172
190
167
148
164
200
222
188
168
185
228
251
228
203
224
275
304
355
318
350
431
474
409
365
402
495
544
523
466
515
631
698
607
543
597
736
809
802
716
790
970
1070
1003
894
987
1211
1337
Swivel
Swivel Nut
Nut Hex
Torque
Size
N·m lb
·ft
(in.)
f
--
--
--
11/16
16
12
--
--
--
13/16
24
18
15/16
50
37
1-1/8
69
51
1-3/8
102
75
--
102
75
1-5/8
142
105
1-7/8
190
140
2-1/4
217
160
--
--
--
Swivel Nut
Tube
or Hose
ft.·lb.
Connection
Connection
F.F.F.T
F.F.F.T
12 ± 1
2
2
15 ± 1
2
2
21 ± 1
1 1/2
1 1/4
45 ± 5
1 1/2
1
85 ± 5
1 1/4
1
120 ± 5
1
1
170 ± 10
1
1
200 ± 15
1
1
270 ± 20
1
1
Maintenance Section 5-7
METRIC CAP SCREWS
Metric Class
8.8
Typical
Grade ID
Markings
on Head
Cap Screw
TORQUE
Size
FT-LBS
N·m
Millimeters
MIN
MAX
MIN
M6 x 1.00
6
8
8
M8 x 1.25
16
20
21.5
M10 x 1.50
29
35
39
M12 x 1.75
52
62
70
M14 x 2.00
85
103
115
M16 x 2.50
130
158
176
M18 x 2.50
172
210
233
M20 x 2.50
247
301
335
M22 x 2.50
332
404
450
M24 x 3.00
423
517
573
M27 x 3.00
637
779
863
M30 x 3.00
872
1066
1181
NOTE: These values apply to fasteners as
received from supplier, dry or when lubricated
with normal engine oil. They do not apply if
special graphite or molydisulphide greases or
other extreme pressure lubricants are used.
Torque Specifications for
SAE O-Ring Fittings
Swivel Nut
Size
or Hose
2
5/16-24
3
3/8-24
4
7/16-20
5
1/2-20
6
9/16-18
8
3/4-16
10
7/8-14
1060 ± 50
12
1 1/16-12
1300 ± 50
14
1 3/16-12
1750 ± 75
16
1 5/16-12 1920 ± 125
20
1 5/8-12
2700 ± 150 225 ± 12
24
1 7/8-12
3000 ± 150 250 ± 12
32
2 1/2-12
3900 ± 200 325 ± 15
10.9
TORQUE
FT-LBS
N·m
MAX
MIN
MAX
MIN
MAX
11
9
11
12
15
27
23
27
31
36.5
47
42
52
57
70
84
75
91
102
123
139
120
146
163
198
214
176
216
238
293
284
240
294
325
398
408
343
426
465
577
547
472
576
639
780
700
599
732
812
992
1055
898
1098
1217
1488
1444
1224
1496
1658
2027
Assembly Torque
in.·lb.
ft.·lb.
F.F.F.T.
90 ± 5
7.5 ± 0.5
1 ± .25
170 ± 10
14 ± 1
1 ± .25
220 ± 15
18 ± 1
1 ± .25
260 ± 15
22 ± 1
1 ± .25
320 ± 20
27 ± 2
1.5 ± .25
570 ± 25
48 ± 2
1.5 ± .25
90 ± 5
1.5 ± .25
110 ± 5
1.5 ± .25
145 ± 6
1.5 ± .25
160 ± 6
1.5 ± .25
1.5 ± .25
1.5 ± .25
1.5 ± .25
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