Buell 2003XB9S, Service Manual

Page: 32 / 588

C-2 2003 Buell XB9S: Appendix C
HOME
FASTENER TORQUE VALUES C.2
GENERAL
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.
● foot-pounds (ft-lbs) x 1.356 = Newton-meters (Nm)
●
inch-pounds (in-lbs) x 0.113 = Newton-meters (Nm)
1
WARNING
1
WARNING
The quality fasteners used on Harley-Davidson
motorcycles have specific strength, finish and type
requirements to perform properly in the assembly and
the operating environment. Use only genuine Harley
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
Table C-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.