ISO metric thread, NORMAL torque
M16
97.0
110.0
84.0
230.0
260.0
200.0
350.0
400.0
300.0
M20
185.0
210.0
160.0
490.0
560.0
420.0
700.0
800.0
600.0
M24
320.0
360.0
280.0
840.0
960.0
720.0
1150.0
1300.0
1000.0
M30
630.0
720.0
540.0
1600.0
1800.0
1400.0
2450.0
2800.0
2100.0
M36
1100.0
1250.0
950.0
2900.0
3300.0
2500.0
4200.0
4800.0
3600.0
2.1.4.3 Generic table of tightening torques for nuts and screws, in Nm
ISO metric thread, LOW torque
Class
ISO 4.6 = SAE 1
ISO Class 8.8 = SAE 5
ISO Class 10.9 = SAE 8
Track
Nom.
Max.
Min.
Nom.
Max.
Min.
Nom.
Max.
Min.
M3
0.5
0.6
0.4
1.2
1.4
1.0
1.7
1.9
1.5
M4
1.15
1.3
1.0
2.9
3.3
2.5
4.0
4.6
3.4
M5
2.1
2.4
1.8
5.6
6.4
4.8
8.0
9.2
6.8
M6
3.6
4.0
3.2
9.5
11.0
8.0
14.0
16.0
12.0
M8
8.8
10.0
7.6
24.0
28.0
20.0
33.0
37.0
29.0
M10
17.5
20.0
15.0
48.0
56.0
40.0
67.0
77.0
57.0
M12
30.0
34.0
26.0
84.0
96.0
72.0
115.0
130.0
100.0
M16
78.0
88.0
68.0
185.0
210.0
160.0
280.0
320.0
240.0
M20
150.0
170.0
130.0
395.0
450.0
340.0
560.0
640.0
480.0
M24
260.0
290.0
230.0
670.0
770.0
570.0
920.0
1040.0
800.0
M30
500.0
570.0
430.0
1300.0
1400.0
1100.0
1950.0
2200.0
1700.0
M36
800.0
1000.0
760.0
2300.0
2600.0
2000.0
3350.0
3800.0
2900.0
2.1.4.4 Generic table of tightening torques for nuts and screws, in Nm
Thread in inches, NORMAL torque
Class
ISO 4.6 = SAE 1
ISO Class 8.8 = SAE 5
ISO Class 10.9 = SAE 8
Track
Nom.
Max.
Min.
Nom.
Max.
Min.
Nom.
Max.
Min.
1/4"
7
8
6
13
15
11
19
22
16
5/16"
14
16
12
26
30
22
37
43
31
3/8"
26
30
22
46
53
39
65
75
55
7/16"
41
47
35
75
86
64
105
120
90
1/2"
63
72
54
115
130
100
160
180
140
5/8"
125
140
110
230
260
200
325
370
280
3/4"
220
250
190
405
460
350
575
660
490
7/8"
360
410
310
660
760
560
930
1060
800
1"
540
620
460
980
1120
840
1400
1600
1200
4
GUID-45BAEDC8-B6DA-47AE-81F6-AC1DA3DAD128 [V3]
GUID-38F4972B-F3A8-487B-AF05-965F4B827DD5 [V1]
2. General Info
2-10
HiTech
ACW3452230
