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ASME B18.31.1M Metric Tap End Full Body Studs Dimensions

ASME B18.31.1M Metric Tap End Full Body Studs Dimensions Drawings

ASME B18.31.1M Metric Tap End Full Body Studs Dimensions (mm)

Nominal Size
Diameter, D		 Tap End Length, BM Nut End Thread Length, B UMax.
= 2P		 Nominal Length, L Body Diameter, DS
L ≤ 125 125 < L ≤ 200 L > 200 Min. Max. Min. (by Length)
Min. Max. Min. Max. Min. Max. Range Incr. L ≤ 150 L > 150
M1.6 2.1 - 2.7 9.2 9.9 - - - - 0.7 25-50 5 - 1.60 1.29 1.29
M2 2.7 - 3.3 10 10.8 - - - - 0.8 25-50 5 - 2.00 1.65 1.65
M2.5 3.37 - 4.12 11 11.9 - - - - 0.9 30-50 5 - 2.50 2.12 2.12
M3 4.12 - 4.87 12 13 - - - - 1 30-50 5 - 3.00 2.58 2.58
M4 5.62 - 6.37 14 15.4 - - - - 1.4 35-90 5 - 4.00 3.43 3.43
M5 7.05 - 7.95 16 17.6 - - - - 1.6 40-90 5 - 5.00 4.36 4.36
M6 8.55 - 9.45 18 20 24 26 - - 2 50-90
100-160		 5
10		 5.21 6.00 5.82 5.70
M8 11.45 - 12.55 18 20.5 24 26.5 - - 2.5 50-90
≥ 100		 5
10		 7.04 8.00 7.78 7.64
M10 14.45 - 15.55 26 29 32 35 45 48 3 60-160
≥ 180		 10
20		 8.86 10.00 9.78 9.64
M12 17.45 - 18.55 30 33.5 36 39.5 49 52.5 3.5 60-160
≥ 180		 10
20		 10.68 12.00 11.73 11.57
M14 20.35 - 21.65 34 38 40 44 53 57 4 80-160
≥ 180		 10
20		 12.50 14.00 13.73 13.57
M16 23.35 - 30.65 38 42 44 48 57 61 4 90-160
≥ 180		 10
20		 14.50 16.00 15.73 15.57
M20 29.35 - 30.65 46 51 52 57 65 70 5 100-160
≥ 180		 10
20		 18.16 20.00 19.67 19.48
M24 35.2 - 36.8 54 60 60 66 73 79 6 130-160
≥ 180		 10
20		 21.80 24.00 23.67 23.48
M30 43.75 - 46.25 66 73 72 79 85 92 7 150-160
≥ 180		 10
20		 27.46 30.00 - 29.48
M36 52.5 - 55.5 78 86 84 92 97 105 8 ≥ 200 20 33.12 36.00 - 35.38
M42 61.5 - 64.5 90 99 96 105 109 118 9 ≥ 240 20 38.78 42.00 - 41.38
M48 70.5 - 73.5 - - 108 118 121 131 10 ≥ 280 20 44.43 48.00 - 47.38
M56 82.25 - 85.75 - - 124 135 137 148 11 ≥ 300 20 52.09 56.00 - 55.26
M64 94.5 - 97.5 - - 140 152 153 165 12 ≥ 340 20 59.74 64.00 - 63.26
M72 106.5 - 109.5 - - 156 168 169 181 12 ≥ 380 20 67.74 72.00 - 71.26
M80 118.5 - 121.5 - - 172 184 185 197 12 ≥ 400 20 75.74 80.00 - 79.26
M90 133 - 137 - - - - 205 217 12 ≥ 440 20 85.74 90.00 - 89.13
M100 148 - 152 - - - - 225 237 12 ≥ 480 20 95.72 100.00 - 99.13

ASME B18.31.1M Metric Tap End Full Body 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