IMT 5525

Chapter 5 General Reference 117
FINE THREAD TORQUE CHART (METRIC)
TIGHTENING TORQUE
SIZE
(DIA-TPI)
BOLT DIA.
(INCHES)
SAE J429
GRADE 5
SAE J429
GRADE 8
PLAIN (KG-
M)
PLATED
(KG-M)
PLAIN
(KG-M)
PLATED
(KG-M)
5/16-24
0.3125
3
2
4
3
3/8-24
0.375
5
4
7
5
7/16-20
0.4375
8
6
11
8
1/2-20
0.5
12
9
17
12
9/16-18
0.5625
17
12
24
18
5/8-18
0.625
24
18
33
25
3/4-16
0.75
41
31
58
44
7/8-11
0.875
62
45
93
69
1-12
1
89
67
138
103
1 1/8-12
1.125
123
93
200
150
1 1/4-12
1.25
171
129
278
209
1 3/8-12
1.375
232
174
375
281
1 1/2-12
1.5
304
228
492
369
COARSE THREAD TORQUE CHART (METRIC)
TIGHTENING TORQUE
SIZE
(DIA-TPI)
BOLT DIA.
(INCHES)
SAE J429
GRADE 5
SAE J429
GRADE 8
PLAIN (KG-
M)
PLATED
(KG-M)
PLAIN
(KG-M)
PLATED
(KG-M)
5/16-18
0.3125
2
2
3
2
3/8-16
0.375
4
3
6
5
7/16-14
0.4375
7
5
10
7
1/2-13
0.5
10
8
15
11
9/16-12
0.5625
15
11
21
16
5/8-11
0.625
21
16
30
22
3/4-10
0.75
37
28
52
39
7/8-9
0.875
55
41
84
63
1-8
1
82
62
126
94
1 1/8-7
1.125
110
82
178
133
1 1/4-7
1.25
155
116
251
188
1 3/8-6
1.375
203
152
329
246
1 1/2-6
1.5
270
210
438
328