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ASME B18.2.6M :- Dimensions of Metric Heavy Hex Structural Bolts

 Body
Diameter,
E
AF, FAC, GHead Height,
H
Minimum
Fillet
Radius,
Thread
Length,
Maximum
Transition
Thread Length,
Maximum
Runout of
Bearing
PitchMax.Min.Max.Min.Max.Min.Max.Min.RLT, Ref.Y, Ref.Surface FIM
M12 × 1.7512.7011.3021.0020.1624.2522.787.957.050.60255.20.4
M16 × 216.7015.3027.0026.1631.1829.5610.759.250.60316.00.5
M20 × 2.520.8419.1634.0033.0039.2637.2913.4011.600.80367.50.6
M22 × 2.522.8421.1636.0035.0041.5739.5514.9013.100.80387.50.6
M24 × 324.8423.1641.0040.0047.3445.2015.9014.101.00419.00.7
M27 × 327.8426.1646.0045.0053.1250.8517.9016.101.20449.00.8
M30 × 3.530.8429.1650.0049.0057.7455.3719.7517.651.204910.50.9
M36 × 437.0035.0060.0058.8069.2866.4423.5521.451.505612.01.0

GENERAL NOTE:  See Table 2 for LG and LS dimensions.

ASME B18.2.6M :- Maximum Grip Gaging Lengths and Minimum Body Lengths for Metric Heavy Hex Structural Bolts

Nominal Bolt Diameter and Thread Pitch
Nominal
Length,
M12 × 1.75M16 × 2M20 × 2.5M22 × 2.5M24 × 3M27 × 3M30 × 3.5M36 × 4
L G,L S,L G,L S,L G,L S,L G,L S,L G,L S,L G,L S,L G,L S,L G,L S,
Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.
40159.8
452014.8148
502519.81913146.5
553024.824181911.5179.5
603529.829232416.52214.51910
654034.834282921.52719.524152112
704539.839333426.53224.5292026172110.5
755044.844383931.53729.5342531222615.5
805549.849434436.54234.5393036273120.5197
856054.854484941.54739.5443541323625.52412
906559.859535446.55244.5494046374130.52917
957064.864585951.55749.5544551424635.53422
1007569.869636456.56254.5595056475140.53927
11079737466.57264.5696066576150.54432
12089838476.58274.5797076677160.55442
13099939486.59284.5898086778170.56452
14010910310496.510294.5999096879180.57462
150119113114106.5112104.51091001069710190.58472
160129123124116.5122114.5119110116107111100.59482
170139133134126.5132124.5129120126117121110.510492
180149143144136.5142134.5139130136127131120.5114102
190159153154146.5152144.5149140146137141130.5124112
200169163164156.5162154.5159150156147151140.5134122
210179173174166.5172164.5169160166157161150.5144132
220189183184176.5182174.5179170176167171160.5154142
230199193194186.5192184.5189180186177181170.5164152
240209203204196.5202194.5199190196187191180.5174162
250219213214206.5212204.5209200206197201190.5184172
260229223224216.5222214.5219210216207211200.5194182
270239233234226.5232224.5229220226217221210.5204192
280249243244236.5242234.5239230236227231220.5214202
290259253254246.5252244.5249240246237241230.5224212
300269263264256.5262254.5259250256247251240.5234222

ASME B18.2.6M :- Dimensions of Metric Heavy Hex Nuts for Use With Structural Bolts

PitchWidth Across Flats, FWidth Across Corners, GThickness, HMaximum Total
Runout of Bearing
Max.Min.Max.Min.Max.Min.Surface FIM
M12 × 1.7521.0020.1624.2522.7812.311.90.38
M16 × 2.0027.0026.1631.1829.5617.116.40.47
M20 × 2.5034.0033.0039.2637.2920.719.40.58
M22 × 2.5036.0035.0041.5739.5523.622.30.63
M24 × 3.0041.0040.0047.3445.2024.222.90.72
M27 × 3.0046.0045.0053.1250.8527.626.30.80
M30 × 3.5050.0049.0057.7455.3730.729.10.87
M36 × 4.0060.0058.8069.2866.4436.635.01.05

ASME B18.2.6M :- Dimensions of Metric Hardened Steel Circular and Circular Clipped Washers

     T 
Nominal SizeI.D.O.D.StandardExtra ThickClipped Width, E, Min.
[Note (1)]Max.Min.Max.Min.Max.Min.Max.Min.[Note (2)]
1214.414.027.025.74.63.110.08.010.5
1618.418.034.032.44.63.110.08.014.0
2022.522.042.040.44.63.110.08.017.5
2224.524.044.042.44.63.410.08.019.2
2426.526.050.048.44.63.410.08.021.0
2730.530.056.054.14.63.410.08.023.6
3033.633.060.058.14.63.410.08.026.2
3639.639.072.070.14.63.410.08.031.5
4245.645.084.081.87.24.610.08.036.7
4852.752.095.092.87.24.610.08.042.0
5662.762.0107.0104.88.76.110.08.049.0
6470.770.0118.0115.88.76.110.08.056.0
7278.778.0130.0127.58.76.110.08.063.0
8086.986.0142.0139.58.76.110.08.070.0
9096.996.0159.0156.58.76.110.08.078.7
100107.9107.0176.0173.58.76.110.08.087.5

GENERAL NOTE:
(1) Nominal washer sizes are intended for use with comparable nominal
bolt diameters.
(2) Clipped edge, E, shall not be closer than 0.875 times the nominal bolt diameter
from the center of the washer.

ASME B18.2.6M :- Dimensions for Metric Compressible Washer-Type Direct Tension Indicators

SizeCNumber of ProtrusionsE,FCNumber of ProtrusionsE,F,A 
[Note (2)]Min.Max.(Equally Spaced)Min.Max.Min.Max.(Equally Spaced)Min.Max.Min.Max.B
M12
M1635.236.843.25.535.236.843.66.016.7516.8525.0
M2044.046.053.66.044.046.063.66.020.9521.0529.0
M2248.450.653.66.048.450.664.07.023.0523.1533.0
M2452.855.264.07.052.855.274.07.025.1525.2538.0
M2759.462.164.07.059.462.174.07.028.328.443.0
M3066.069.074.07.066.069.084.87.531.4531.5546.5
M3679.282.884.87.579.282.894.87.537.7537.8556.0

GENERAL NOTE:
(1) Type 8.8 and Type 10.9 are intended for use on ASTM A325M and ASTM
A490M bolts, respectively.
(2) Nominal direct tension indicator sizes are intended for use with
fasteners of the same nominal diameter.