Appendix
Standard tightening torques
Information
Tolerances of the indicated tightening torques: 10%.
Always lubricate the thread before tightening these parts (engine oil).
Fig. 136: VSTI screw plugs with ED seal (left), with o-ring (right)
Size
Tightening torque
Size
Tightening torque
1)
VSTI ED
VSTI o-ring
1)
VSTI ED
VSTI o-ring
M8x1
8 Nm
6 ft-lb
8 Nm
6 ft-lb
G 1/8
10 Nm
7 ft-lb
-
M10x1
10 Nm
7 ft-lb
16 Nm
12 ft-lb
G 1/4
25 Nm
18 ft-lb
-
M12x1.5
20 Nm
15 ft-lb
28 Nm
21 ft-lb
G 3/8
50 Nm
37 ft-lb
-
M14x1.5
28 Nm
21 ft-lb
36 Nm
27 ft-lb
G 1/2
65 Nm
48 ft-lb
-
M16x1.5
40 Nm
30 ft-lb
44 Nm
32 ft-lb
G 3/4
112 Nm
83 ft-lb
-
M18x1.5
52 Nm
38 ft-lb
56 Nm
41 ft-lb
G 1
160 Nm
118 ft-lb
-
M20x1.5
60 Nm
44 ft-lb
64 Nm
47 ft-lb
G 1 1/4
320 Nm
236 ft-lb
-
M22x1.5
72 Nm
53 ft-lb
80 Nm
59 ft-lb
G 1 1/2
360 Nm
266 ft-lb
-
M24x1.5
72 Nm
53 ft-lb
-
-
-
-
M26x1.5
100 Nm
74 ft-lb
-
3/4-16 UNF
56 Nm
41 ft-lb
-
M30x1.5
192 Nm
142 ft-lb
-
7/8-1/4 UNF
80 Nm
59 ft-lb
-
M27x2
105 Nm
77 ft-lb
135 Nm
100 ft-lb
R 3/4"
112 Nm
83 ft-lb
96 Nm
71 ft-lb
M30x2
-
172 Nm
127 ft-lb
-
-
-
M33x2
180 Nm
133 ft-lb
250 Nm
184 ft-lb
-
-
-
M42x2
290 Nm
214 ft-lb
265 Nm
195 ft-lb
-
-
-
M48x2
290 Nm
214 ft-lb
335 Nm
247 ft-lb
-
-
-
200
© 2022 by Kohler Co. All rights reserved.
KD62V12 33521030301_8_1 EN_US 2022-09
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