56 Appendix
Bolt Torque & Size Charts (Rev. 10/10/2005)

BOLT SIZE CHART

NOTE: Chart shows bolt thread sizes and corresponding head (wrench) sizes for standard SAE and m etric 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 C oarse
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 Stru cture
RPM............ .......................... Revolutions Per Minute
RT ......................................................................Right
SAE........................ Society of Automotive Engineers
UNC ................................................... Unified Coarse
UNF......................................................... Unified Fine
UNS.................................................... Unified Special

5/16 3/81/2 5/83/4 7/8

SAE Bolt Thread Sizes

MM 25 50 75 100 125 150 175

IN 1 7

Metric Bolt Thread Sizes

8MM 18MM14MM12MM10MM 16MM

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