6
ADJUSTMENTS
6.8
TORQUE SPECIFICATION___________________________________________________
All torque values included in these charts are approximate and are for reference only. Use of these torque values is
at your sole risk. Jacobsen is not responsible for any loss, claim, or damage arising from the use of these charts.
Extreme caution should always be used when using any torque value.
Jacobsen uses Grade 5 bolts as standard, unless otherwise noted.
AMERICAN NATIONAL STANDARD FASTENERS
SIZE
UNITS
#6-32
in-lbs (Nm)
#8-32
in-lbs (Nm)
#10-24
in-lbs (Nm)
#10-32
in-lbs (Nm)
#12-24
in-lbs (Nm)
1/4-20
in-lbs (Nm)
1/4-28
in-lbs (Nm)
5/16-18
in-lbs (Nm)
5/16-24
in-lbs (Nm)
3/8-16
ft-lbs (Nm)
3/8-24
ft-lbs (Nm)
SIZE
UNITS
M4
Nm (in-lbs)
M5
Nm (in-lbs)
M6
Nm (in-lbs)
M8
Nm (in-lbs)
M10
Nm (ft-lbs)
M12
Nm (ft-lbs)
M14
Nm (ft-lbs)
18
GRADE 5
GRADE 8
20 (2.3)
–
24 (2.7)
30 (3.4)
35 (4.0)
45 (5.1)
40 (4.5)
50 (5.7)
50 (5.7)
65 (7.3)
95 (10.7)
125 (14.1)
95 (10.7)
150 (17.0)
200 (22.6)
270 (30.5)
240 (27.1)
300 (33.9)
30 (40.7)
40 (54.2)
35 (47.5)
45 (61.0)
METRIC FASTENERS
4.8
5.8
1.2 (11)
1.7 (15)
2.5 (22)
3.2 (28)
4.3 (38)
5.7 (50)
10.5 (93)
13.6 (120)
21.7 (16)
27.1 (20)
36.6 (27)
47.5 (35)
58.3 (43)
76.4 (55)
NOTICE
AMERICAN NATIONAL STANDARD FASTENERS
SIZE
UNITS
7/16-14
ft-lbs (Nm)
7/16-20
ft-lbs (Nm)
1/2-13
ft-lbs (Nm)
1/2-20
ft-lbs (Nm)
9/16-12
ft-lbs (Nm)
9/16-18
ft-lbs (Nm)
5/8-11
ft-lbs (Nm)
5/8-18
ft-lbs (Nm)
3/4-10
ft-lbs (Nm)
3/4-16
ft-lbs (Nm)
7/8-14
ft-lbs (Nm)
8.8
2.9 (26)
4.1 (36)
5.8 (51)
8.1 (72)
9.9 (88)
14.0 (124)
24.4 (216)
33.9 (300)
47.5 (35)
66.4 (49)
82.7 (61)
116.6 (86)
131.5 (97)
184.4 (136)
GRADE 5
50 (67.8)
55 (74.6)
75 (101.7)
85 (115.3)
105 (142.4)
115 (155.9)
150 (203.4)
160 (217.0)
170 (230.5)
175 (237.3)
300 (406.8)
10.9
12.9
5.0 (44)
9.7 (86)
16.5 (146)
40.7 (360)
81.4 (60)
139.7 (103)
219.7 (162)
GRADE 8
65 (88.1)
70 (94.9)
100 (135.6)
110 (149.2)
135 (183.1)
150 (203.4)
195 (264.4)
210 (284.8)
220 (298.3)
225 (305.1)
400 (542.4)
Non Critical
Fasteners into
Aluminum
2.0 (18)
4.0 (35)
6.8 (60)
17.0 (150)
33.9 (25)
61.0 (45)
94.9 (70)