Appendix 17
Bolt Torque & Size Charts (Rev. 8/14/2002)

BOLT SIZE CHART

NOTE: Chart shows bolt thread sizes and corresponding head (wrench) sizes for sta ndard 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 18MM14MM12MM10MM 16MM

ABBREVIATIONS

AG............................................................. Agriculture
ATF..............................Automatic Transmission Fluid
BSPP .......................... British Standard Pipe Parallel
BSPTM...............British Standard Pipe Tapered Male
CV.................................................. Con stant Velocity
CCW ............................................Counter-C lockwise
CW................................................. ............Clockwise
F..................................................................... Female
GA................................................................... Gauge
GR (5, etc.) .........................................G rade (5, etc.)
HHCS.......................................Hex Head Cap Scr ew
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 Prote ctive Structure
RPM...................................... Revolutions Per Minute
RT............... .......................................................Right
SAE........................ Society of Automotive Engineers
UNC............ ...... ....... ...... ....... ...... ....... Unified Coar se
UNF......................................................... Unified Fine
UNS ................................................... Unified Special