Bolt Torque & Size Charts (Rev. 3/28/2007)
53
Appendix
BOLT SIZE CHART
NOTE:
Chart shows bolt thread sizes and corresponding head (wrench) sizes for standard SAE and metric bolts.
ABBREVIATIONS
AG...............................................................Agriculture
ASABE .................... American Society of Agricultural &
Biological Engineers (formerly ASAE)
ASAE ....... American Society of Agricultural Engineers
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
FT...............................................................Full Thread
GA..................................................................... Gauge
GR (5, etc.) ...........................................Grade (5, etc.)
HHCS........................................ Hex Head Cap Screw
HT ...........................................................Heat-Treated
JIC.............................. Joint Industry Council 37° 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
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
