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Appendix 53
Bolt Torque & Size Charts (Rev. 9/5/00)
BOLT SIZE CHART
NOTE: Chart shows bolt thread sizes and corresponding head (wrench) sizes for standard SAE and metric bolts.
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