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ASME B18.31.1M Metric Clamping Full Body Type Studs Dimensions Standards

ASME B18.31.1M Metric Clamping Full Body Type Studs Dimensions Drawing

ASME B18.31.1M Metric Clamping Full Body Type Studs Dimensions (mm)

Nominal Size
Diameter, D		 Thread Length, B UMax.
= 2P		 Nominal Length, L Body Diameter, DS
LT ≤ 250 250 < LT ≤ 400 LT > 400 Max. Min. (by Length)
Min. Max. Min. Max. Min. Max. Range Incr. LT ≤ 150 LT > 150
M1.6 9.2 9.9 - - - - 0.7 25-50 5 1.60 1.29 1.29
M2 10 10.8 - - - - 0.8 25-50 5 2.00 1.65 1.65
M2.5 11 11.9 - - - - 0.9 30-50 5 2.50 2.12 2.12
M3 12 13 - - - - 1 30-50 5 3.00 2.58 2.58
M4 14 15.4 - - - - 1.4 35-90 5 4.00 3.43 3.43
M5 16 17.6 - - - - 1.6 40-90 5 5.00 4.36 4.36
M6 18 20 24 26 - - 2 50-90
100-160		 5
10		 6.00 5.82 5.70
M8 18 20.5 26.5 24 - - 2.5 50-90
≥ 100		 5
10		 8.00 7.78 7.64
M10 26 29 32 35 45 48 3 60-160
≥ 180		 10
20		 10.00 9.78 9.64
M12 30 33.5 36 39.5 49 52.5 3.5 60-160
≥ 180		 10
20		 12.00 11.73 11.57
M14 34 38 40 44 53 57 4 80-160
≥ 180		 10
20		 14.00 13.73 13.57
M16 38 42 44 48 57 61 4 90-160
≥ 180		 10
20		 16.00 15.73 15.57
M20 46 51 52 57 65 70 5 100-160
> 180		 10
20		 20.00 19.67 19.48
M24 54 60 60 66 73 79 6 130-160
≥ 180		 10
20		 24.00 23.67 23.48
M30 66 73 72 79 85 92 7 150-160
≥ 180		 10
20		 30.00 - 29.48
M36 78 86 84 92 97 105 8 ≥ 200 20 36.00 - 35.38
M42 90 99 96 105 109 118 9 ≥ 240 20 42.00 - 41.38
M48 - - 108 118 121 131 10 ≥ 280 20 48.00 - 47.38
M56 - - 124 135 137 148 11 ≥ 300 20 56.00 - 55.26
M64 - - 140 152 153 165 12 ≥ 340 20 64.00 - 63.26
M72 - - 156 168 169 181 12 ≥ 380 20 72.00 - 71.26
M80 - - 172 184 185 197 12 ≥ 400 20 80.00 - 79.26
M90 - - - - 205 217 12 ≥ 440 20 90.00 - 89.13
M100 - - - - 225 237 12 ≥ 480 20 100.00 - 99.13

ASME B18.31.1M Metric Full Body Clamping Type Studs Length Tolerances (mm)

Nominal Length Tolerance
Over Through
6 10 ± 0.29
10 18 ± 0.35
18 30 ± 0.42
30 50 ± 0.50
50 80 ± 0.95
80 120 ± 1.10
120 180 ± 1.25
180 250 ± 1.45
250 315 ± 1.60
315 400 ± 1.80
400 500 ± 2.00
>500 ... ± 5.00