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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
8
MM
1
8
MM
14MM
12MM
10MM
16MM
2
3
4
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
