Appendix
51
Bolt Torque & Size Charts (Rev. 8/14/2002)
BOLT SIZE CHART
NOTE:
Chart shows bolt thread sizes and corresponding head (wrench) sizes for standard SAE and metric bolts.
5/16
3/8
1/2
5/8
3/4
7/8
SAE Bolt Thread Sizes
MM
25
50
75
100
125
150
175
IN
1
2
3
4
5
6
7
Metric Bolt Thread Sizes
8MM
18MM
14MM
12MM
10MM
16MM
ABBREVIATIONS
AG ............................................................. Agriculture
ATF...............................Automatic Transmission Fluid
BSPP ...........................British Standard Pipe Parallel
BSPTM...............British Standard Pipe Tapered Male
CV .................................................. Constant Velocity
CCW ............................................ Counter-Clockwise
CW ............................................................. Clockwise
F ..................................................................... Female
GA ................................................................... Gauge
GR (5, etc.) ......................................... Grade (5, etc.)
HHCS .......................................Hex Head Cap Screw
HT ......................................................... Heat-Treated
JIC............... Joint Industry Council 37°
Degree Flare
LH ...............................................................Left Hand
LT ......................................................................... Left
m ....................................................................... Meter
mm ..............................................................Millimeter
M ........................................................................ Male
MPa........................................................Mega Pascal
N .................................................................... Newton
NC .................................................... National Coarse
NF ......................................................... National Fine
NPSM................... National Pipe Straight Mechanical
NPT .........................................National Pipe Tapered
NPT SWF ........National Pipe Tapered Swivel Female
ORBM .........................................O-Ring Boss - Male
P......................................................................... Pitch
PBY ..................................................... Power-Beyond
psi ........................................Pounds per Square Inch
PTO .................................................... Power Take Off
QD.................................................. Quick Disconnect
RH ............................................................ Right Hand
ROPS ......................... Roll-Over Protective Structure
RPM ...................................... Revolutions Per Minute
RT ......................................................................Right
SAE ........................ Society of Automotive Engineers
UNC ................................................... Unified Coarse
UNF......................................................... Unified Fine
UNS ................................................... Unified Special