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14 Appendix
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 7
Metric Bolt Thread Sizes
8MM 18MM14MM12MM10MM 16MM
2
34
5
6
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