Nissan Sentra B18 (2020-2025) Service Manual: Tightening Torque of Standard Bolts
Description
Description
This vehicle has both new standard based on ISO* and previous standard bolts/nuts. There are some differences between these two types of bolts/ nuts; shape of the head, grade of strength, hexagonal width across flats and the standard tightening torque.
-
For guidance in discriminating, refer to Tightening Torque Table (New Standard Included).
-
If the tightening torque is not described in the description or figure, refer to Tightening Torque Table (New Standard Included).
*ISO: International Organization for Standardization
Tightening Torque Table (new Standard Included)
Tightening Torque Table (New Standard Included)
CAUTION:
-
The special parts are excluded.
-
The bolts/nuts in these tables have a strength (discrimination) number/symbol assigned to the head or the like. As to the relation between the strength grade in these tables and the strength (discrimination) number/symbol, refer to “DISCRIMINATION OF BOLTS AND NUTS”.
PREVIOUS STANDARD
|
Grade (Strength grade) |
Bolt size |
Bolt diameter mm |
Hexagonal width across flats mm |
Pitch mm |
Tightening torque (Without lubricant) |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Hexagon head bolt |
Hexagon flange bolt |
|||||||||||
|
N·m |
kg-m |
ft-lb |
in-lb |
N·m |
kg-m |
ft-lb |
in-lb |
|||||
|
4T |
M6 |
6.0 |
10 |
1.0 |
5.5 |
0.56 |
4 |
49 |
7 |
0.71 |
5 |
62 |
|
M8 |
8.0 |
12 |
1.25 |
13.5 |
1.4 |
10 |
— |
17 |
1.7 |
13 |
— |
|
|
1.0 |
13.5 |
1.4 |
10 |
— |
17 |
1.7 |
13 |
— |
||||
|
M10 |
10.0 |
14 |
1.5 |
28 |
2.9 |
21 |
— |
35 |
3.6 |
26 |
— |
|
|
1.25 |
28 |
2.9 |
21 |
— |
35 |
3.6 |
26 |
— |
||||
|
M12 |
12.0 |
17 |
1.75 |
45 |
4.6 |
33 |
— |
55 |
5.6 |
41 |
— |
|
|
1.25 |
45 |
4.6 |
33 |
— |
65 |
6.6 |
48 |
— |
||||
|
M14 |
14.0 |
19 |
1.5 |
80 |
8.2 |
59 |
— |
100 |
10 |
74 |
— |
|
|
7T |
M6 |
6.0 |
10 |
1.0 |
9 |
0.92 |
7 |
80 |
11 |
1.1 |
8 |
97 |
|
M8 |
8.0 |
12 |
1.25 |
22 |
2.2 |
16 |
— |
28 |
2.9 |
21 |
— |
|
|
1.0 |
22 |
2.2 |
16 |
— |
28 |
2.9 |
21 |
— |
||||
|
M10 |
10.0 |
14 |
1.5 |
45 |
4.6 |
33 |
— |
55 |
5.6 |
41 |
— |
|
|
1.25 |
45 |
4.6 |
33 |
— |
55 |
5.6 |
41 |
— |
||||
|
M12 |
12.0 |
17 |
1.75 |
80 |
8.2 |
59 |
— |
100 |
10 |
74 |
— |
|
|
1.25 |
80 |
8.2 |
59 |
— |
100 |
10 |
74 |
— |
||||
|
M14 |
14.0 |
19 |
1.5 |
130 |
13 |
96 |
— |
170 |
17 |
125 |
— |
|
|
9T |
M6 |
6.0 |
10 |
1.0 |
11 |
1.1 |
8 |
— |
13.5 |
1.4 |
10 |
— |
|
M8 |
8.0 |
12 |
1.25 |
28 |
2.9 |
21 |
— |
35 |
3.6 |
26 |
— |
|
|
1.0 |
28 |
2.9 |
21 |
— |
35 |
3.6 |
26 |
— |
||||
|
M10 |
10.0 |
14 |
1.5 |
55 |
5.6 |
41 |
— |
80 |
8.2 |
59 |
— |
|
|
1.25 |
55 |
5.6 |
41 |
— |
80 |
8.2 |
59 |
— |
||||
|
M12 |
12.0 |
17 |
1.75 |
100 |
10 |
74 |
— |
130 |
13 |
96 |
— |
|
|
1.25 |
100 |
10 |
74 |
— |
130 |
13 |
96 |
— |
||||
|
M14 |
14.0 |
19 |
1.5 |
170 |
17 |
125 |
— |
210 |
21 |
155 |
— |
|
CAUTION:
The parts with aluminum or the cast iron washer surface/thread surface are excluded.
NEW STANDARD BASED ON ISO
|
Grade (Strength grade) |
Bolt size |
Bolt diameter mm |
Hexagonal width across flats mm |
Pitch mm |
Tightening torque |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Hexagon head bolt |
Hexagon flange bolt |
|||||||||||
|
N·m |
kg-m |
ft-lb |
in-lb |
N·m |
kg-m |
ft-lb |
in-lb |
|||||
|
4.8 (Without lubricant) |
M6 |
6.0 |
10 |
1.0 |
5.5 |
0.56 |
4 |
49 |
7 |
0.71 |
5 |
62 |
|
M8 |
8.0 |
13 |
1.25 |
13.5 |
1.4 |
10 |
— |
17 |
1.7 |
13 |
— |
|
|
1.0 |
13.5 |
1.4 |
10 |
— |
17 |
1.7 |
13 |
— |
||||
|
M10 |
10.0 |
16 |
1.5 |
28 |
2.9 |
21 |
— |
35 |
3.6 |
26 |
— |
|
|
1.25 |
28 |
2.9 |
21 |
— |
35 |
3.6 |
26 |
— |
||||
|
M12 |
12.0 |
18 |
1.75 |
45 |
4.6 |
33 |
— |
55 |
5.6 |
41 |
— |
|
|
1.25 |
45 |
4.6 |
33 |
— |
65 |
6.6 |
48 |
— |
||||
|
M14 |
14.0 |
21 |
1.5 |
80 |
8.2 |
59 |
— |
100 |
10 |
74 |
— |
|
|
4.8 (With lubricant) |
M6 |
6.0 |
10 |
1.0 |
4 |
0.41 |
3 |
35 |
5.5 |
0.56 |
4 |
49 |
|
M8 |
8.0 |
13 |
1.25 |
11 |
1.1 |
8 |
— |
13.5 |
1.4 |
10 |
— |
|
|
1.0 |
11 |
1.1 |
8 |
— |
13.5 |
1.4 |
10 |
— |
||||
|
M10 |
10.0 |
16 |
1.5 |
22 |
2.2 |
16 |
— |
28 |
2.9 |
21 |
— |
|
|
1.25 |
22 |
2.2 |
16 |
— |
28 |
2.9 |
21 |
— |
||||
|
M12 |
12.0 |
18 |
1.75 |
35 |
3.6 |
26 |
— |
45 |
4.6 |
33 |
— |
|
|
1.25 |
35 |
3.6 |
26 |
— |
45 |
4.6 |
33 |
— |
||||
|
M14 |
14.0 |
21 |
1.5 |
65 |
6.6 |
48 |
— |
80 |
8.2 |
59 |
— |
|
|
8.8 (With lubricant) |
M6 |
6.0 |
10 |
1.0 |
8 |
0.82 |
6 |
71 |
10 |
1.0 |
7 |
89 |
|
M8 |
8.0 |
13 |
1.25 |
21 |
2.1 |
15 |
— |
25 |
2.6 |
18 |
— |
|
|
1.0 |
21 |
2.1 |
15 |
— |
25 |
2.6 |
18 |
— |
||||
|
M10 |
10.0 |
16 |
1.5 |
40 |
4.1 |
30 |
— |
50 |
5.1 |
37 |
— |
|
|
1.25 |
40 |
4.1 |
30 |
— |
50 |
5.1 |
37 |
— |
||||
|
M12 |
12.0 |
18 |
1.75 |
70 |
7.1 |
52 |
— |
85 |
8.7 |
63 |
— |
|
|
1.25 |
70 |
7.1 |
52 |
— |
85 |
8.7 |
63 |
— |
||||
|
M14 |
14.0 |
21 |
1.5 |
120 |
12 |
89 |
— |
140 |
14 |
103 |
— |
|
|
10.9 (With lubricant) |
M6 |
6.0 |
10 |
1.0 |
10 |
1.0 |
7 |
89 |
12 |
1.2 |
9 |
106 |
|
M8 |
8.0 |
13 |
1.25 |
27 |
2.8 |
20 |
— |
32 |
3.3 |
24 |
— |
|
|
1.0 |
27 |
2.8 |
20 |
— |
32 |
3.3 |
24 |
— |
||||
|
M10 |
10.0 |
16 |
1.5 |
55 |
5.6 |
41 |
— |
65 |
6.6 |
48 |
— |
|
|
1.25 |
55 |
5.6 |
41 |
— |
65 |
6.6 |
48 |
— |
||||
|
M12 |
12.0 |
18 |
1.75 |
95 |
9.7 |
70 |
— |
110 |
11 |
81 |
— |
|
|
1.25 |
95 |
9.7 |
70 |
— |
110 |
11 |
81 |
— |
||||
|
M14 |
14.0 |
21 |
1.5 |
160 |
16 |
118 |
— |
180 |
18 |
133 |
— |
|
CAUTION:
-
Use tightening torque with lubricant for the new standard bolts/nuts in principle. Friction coefficient stabilizer is applied to the new standard bolts/nuts.
-
However, use tightening torque without lubricant for the following cases. Friction coefficient stabilizer is not applied to the following bolts/nuts.
-
Grade 4.8, M6 size bolt, Conical spring washer installed
-
Paint removing nut (Size M6 and M8) for fixing with weld bolt
-
DISCRIMINATION OF BOLTS AND NUTS
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