B-2
Appendix B, Wiring
HOME
FASTENER TORQUE VALUES
B.2
Torque specifications for specific components are listed in
each section at the point of use. When converting to Newton-
meters, use the formulas given under the metric chart. For all
other steel fasteners, use the values listed in one of the tables
below. In the English table, torque figures are listed in ft-lbs,
except those marked with an asterisk (*), which are listed in
in-
lbs
. In the metric table, figures are listed in Newton-meters.
1
WARNING
1
WARNING
The quality fasteners used on Buell motorcycles have
specific strength, finish and type requirements to perform
properly in the assembly and the operating environment.
Use only genuine Buell replacement fasteners tightened
to the proper torque. Substitution could cause fastener
failure, which could result in death or serious injury.
*Torque values in
in-lbs.
foot-pounds
(ft-lbs) x 1.356 =
Newton-meters
(Nm)
inch-pounds
(in-lbs) x 0.113 =
Newton-meters
(Nm)
Table B-2. English Torque Values
FASTENER
TYPE
MINIMUM
TENSILE
STRENGTH
MATERIAL
BODY SIZE OR OUTSIDE DIAMETER
# (number)
in. (inches)
2
3
4
5
6
8
10
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
SAE 2
STEEL
74,000
PSI
LOW
CARBON
6
12
20
32
47
69
96
155
206
310
SAE 5
STEEL
120,000
PSI
MEDIUM
CARBON HEAT
TREAT
14*
22*
10
19
33
54
78
114
154
257
382
587
SAE 7
STEEL
133,000
PSI
MEDIUM
CARBON
ALLOY
13
25
44
71
110
154
215
360
570
840
SAE 8
STEEL
150,000
PSI
MEDIUM
CARBON
ALLOY
14
29
47
78
119
169
230
380
600
900
SAE 8
STEEL
150,000
PSI
MEDIUM
CARBON
ALLOY
14
29
47
78
119
169
230
380
600
900
SOCKET
SET
SCREW
212,000
PSI
HIGH CARBON
QUENCHED
TEMPERED
9*
16*
30*
70*
140*
18
29
43
63
100
146
STUDS
Use SAE 2, 5 and 8 values when grade is known, with nut of sufficient strength.
Table B-3. Metric Torque Values
FASTENER
TYPE
MINIMUM
TENSILE
STRENGTH
MATERIAL
BODY SIZE OR OUTSIDE DIAMETER
# (number)
mm (millimeters)
2
3
4
5
6
8
10
6.4
7.9
9.5
11.1
12.7
14.3
15.9
19.1
22.2
25.4
SAE 2
STEEL
5,202
kg/cm
2
LOW
CARBON
8.3
16.6
27.7
44.3
65.0
95.4
132.8
214.4
283.5
428.7
SAE 5
STEEL
8,436
kg/cm
2
MEDIUM
CARBON HEAT
TREAT
1.6
2.5
13.8
26.3
45.6
74.7
107.9
157.7
213.0
355.4
528.3
811.8
SAE 7
STEEL
9,350
kg/cm
2
MEDIUM
CARBON
ALLOY
18.0
34.6
60.8
98.2
152.1
213.0
297.3
497.9
788.3
1161.7
SAE 8
STEEL
10,545
kg/cm
2
MEDIUM
CARBON
ALLOY
19.4
40.1
65.0
107.9
164.6
233.7
318.1
525.5
829.8
1220.0
SAE 8
STEEL
10,545
kg/cm
2
MEDIUM
CARBON
ALLOY
19.4
40.1
65.0
107.9
164.6
233.7
318.1
525.5
829.8
1220.0
SOCKET
SET
SCREW
14,904
kg/cm
2
HIGH CARBON
QUENCHED
TEMPERED
1.0
1.8
3.4
8.1
16.1
24.9
40.1
59.5
87.1
138.3
201.9
STUDS
Use SAE 2, 5 and 8 values when grade is known, with nut of sufficient strength.
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