Tightening Torques; General Use Screws, Bolts And Nuts; Stud - Ezgo 1600xd Repair Manual

9. TIGHTENING TORQUES

9.1 GENERAL USE SCREWS, BOLTS AND NUTS

Screws, bolts and nuts whose tightening torques are not specifi ed in this workshop manual should be tightened ac-
cording to the table below.
Mark on bolt
head
Material of
bolt
Material of steel
Steel or gray iron
or gray iron part
Unit
Nm kgf-m lb-ft
Code
7.85 0.80
M6 (6 mm,
~ ~
0.24 in.)
9.31 0.95
17.7 1.8
M8 (8 mm,
~ ~
0.31 in.)
20.5 2.1
39.3 4.0
M10 (10 mm,
~ ~
0.39 in.)
45.1 4.6
62.8 6.4
M12 (12 mm,
~ ~
0.47 in.)
72.5 7.4
11 .0
108
M14 (14 mm,
~
~
0.55 in.)
12.8
125
167 17.0
M16 (16 mm,
~ ~
0.63 in.)
191 19.5
246 25.0
M18 (18 mm,
~ ~
0.71 in.)
284 29.0
334 34.0
M20 (20 mm,
~ ~
0.79 in.)
392 40.0

9.2 STUD

Material of component part
Unit
Diameter
M8 (8 mm, 0.31 in.)
M10 (10 mm, 0.39 in.)
M12 (12 mm, 0.47 in.)
2
-14
GENERAL - TIGHTENING TORQUE
4 No-grade or 4T
SS400, S20C
Aluminum
Nm kgf-m lb-ft
5.79 7.85 0.80 5.79
~ ~ ~ ~
6.87 8.82 0.90 6.50
13.1 16.7 1.7 12.3
~ ~ ~ ~
15.1 19.6 2.0 14.4
29.0 31.4 3.2 23.2
~ ~ ~
~
33.2 34.3 3.5 25.3
46.3
~
53.5
79.6
~
92.5
123
~
141
181
~
209
246
~
289
Steel or gray iron
Nm kgf-m
11.6 ~ 15.6 1.2 ~ 1.6
24.6 ~ 31.3 2.5 ~ 3.2
29.5 ~ 49.0 3.0 ~ 5.0
7 7T
S43C, S48C
Steel or gray iron Aluminum
Nm kgf-m lb-ft Nm kgf-m lb-ft
9.81 1.00 7.24 7.85 0.80
~ ~ ~ ~
11.2 1.15 8.31 8.82 0.90
23.6 2.4 17.4 17.7 1.8
~ ~ ~ ~
27.4 2.8 20.2 20.5 2.1
48.1 4.9 35.5 39.3 4.0
~ ~ ~ ~
55.8 5.7 41.2 44.1 4.5
77.5 7.9 57.2 62.8 6.4
~ ~ ~ ~
90.2 9.2 66.5 72.5 7.4
124 12.6
91.2
~ ~ ~
147 15.0 108
197 20.0 145
~ ~ ~
225
23.0 166
275 28.0 203
~ ~ ~
318 32.5 235
368 37.5 272
~ ~ ~
431 44.0 318
lb-ft Nm
8.68 ~ 11.5 8.82 ~ 11.6
18.1 ~ 23.1 19.7 ~ 25.4
21.7 ~ 36.1 31.4
9 9T
SCr435, SCM435
Steel or gray iron
Nm kgf-m lb-ft
5.79 12.3 1.25 9.05
~ ~ ~ ~ ~
6.50 14.2 1.45 10.4
13.1 29.5 3.0 21.7
~ ~ ~ ~ ~
15.1 34.3 3.5 25.3
29.0 60.9 6.2 44.9
~ ~ ~ ~ ~
32.5 70.6 7.2 52.0
46.3 103 10.5 76.0
~ ~ ~ ~ ~
53.5 117 12.0 86.7
167 17.0 123
~ ~ ~
704 20.0 144
260 26.5 192
~ ~ ~
304 31.0 224
344 35.0 254
~ ~ ~
402 41.0 296
491 50.0 362
~ ~ ~
568 58.0 419
Aluminum
kgf-m lb-ft
0.90 ~ 1.2 6.51 ~ 8.67
2.0 ~ 2.6 14.5 ~ 18.8
3.2 23.1
SUUV-W00 Apr. 2011