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Specifications
GENERAL TORQUE VALUES
English Fastener Torque Recommendations for Standard Applications
Bolts, Screws, Nuts and Fasteners Assembled Into Cast Iron or Steel
Size
Tightening Torque: N·m (in. lb.) ± 20%
8-32
10-24
10-32
1/4-20
1/4-28
5/16-18
5/16-24
3/8-16
3/8-24
Tightening Torque: N·m (ft. lb.) ± 20%
5/16-24
3/8-16
3/8-24
7/16-14
7/16-20
1/2-13
1/2-20
9/16-12
9/16-18
135.6 (100)
5/8-11
149.5 (110)
5/8-18
189.8 (140)
3/4-10
199.3 (147)
3/4-16
271.2 (200)
Metric Fastener Torque Recommendations for Standard Applications
Size
4.8
Tightening Torque: N·m (in. lb.) ± 10%
M4
1.2 (11)
M5
2.5 (22)
M6
4.3 (38)
M8
10.5 (93)
Tightening Torque: N·m (ft. lb.) ± 10%
M10
21.7 (16)
M12
36.6 (27)
M14
58.3 (43)
20
All manuals and user guides at all-guides.com
Grade 2
2.3 (20)
3.6 (32)
3.6 (32)
7.9 (70)
13.0 (115)
9.6 (85)
15.8 (140)
17.0 (150)
28.3 (250)
18.7 (165)
30.5 (270)
29.4 (260)
33.9 (300)
—
—
47.5 (35)
—
54.2 (40)
47.5 (35)
74.6 (55)
61.0 (45)
101.7 (75)
67.8 (50)
108.5 (80)
94.9 (70)
142.4 (105)
101.7 (75)
169.5 (125)
223.7 (165)
244.1 (180)
311.9 (230)
332.2 (245)
440.7 (325)
Property Class
5.8
1.7 (15)
2.9 (26)
3.2 (28)
5.8 (51)
5.7 (50)
9.9 (88)
13.6 (120)
24.4 (216)
27.1 (20)
47.5 (35)
47.5 (35)
82.7 (61)
76.4 (56)
131.5 (97)
Torque Conversions
N·m = in. lb. x 0.113
N·m = ft. lb. x 1.356
KohlerEngines.com
Grade 5
Grade 8
2.8 (25)
4.5 (40)
4.5 (40)
18.7 (165)
22.6 (200)
39.6 (350)
—
—
—
40.7 (30)
67.8 (50)
81.4 (60)
108.5 (80)
142.5 (105)
155.9 (115)
223.7 (165)
237.3 (175)
311.9 (230)
352.6 (260)
447.5 (330)
474.6 (350)
637.3 (470)
8.8
10.9
4.1 (36)
8.1 (72)
14.0 (124)
33.9 (300)
66.4 (49)
116.6 (86)
184.4 (136)
in. lb. = N·m x 8.85
ft. lb. = N·m x 0.737
Grade 2 or 5 Fasteners
Into Aluminum
—
2.3 (20)
—
3.6 (32)
—
—
7.9 (70)
—
17.0 (150)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
12.9
Into Aluminum
5.0 (44)
9.7 (86)
16.5 (146)
40.7 (360)
81.4 (60)
139.7 (103)
219.7 (162)
62 690 01 Rev. J
Noncritical
Fasteners
2.0 (18)
4.0 (35)
6.8 (60)
17.0 (150)
33.9 (25)
61.0 (45)
94.9 (70)
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