|
ISO Metric Thread Designation |
Pitch
|
Metric Internal Threads Specification Table |
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|
Tolerance Class |
Minor Dia
|
Pitch Dia
|
Major Dia
|
Tap Drill |
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|
Min
|
Max
|
Min
|
Max
|
Min
|
Max
|
Basic
|
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|
M0.25x0.075
|
0.075
|
6H
|
0.172
|
0.208
|
0.201
|
0.215
|
0.255
|
0.276
|
0.175
|
|
M0.3x0.08
|
0.08
|
6H
|
0.217
|
0.254
|
0.248
|
0.262
|
0.306
|
0.327
|
0.210
|
|
M0.3x0.09
|
0.09
|
6H
|
0.206
|
0.247
|
0.242
|
0.257
|
0.306
|
0.330
|
0.220
|
|
M0.35x0.09
|
0.09
|
6H
|
0.256
|
0.297
|
0.292
|
0.307
|
0.356
|
0.380
|
0.245
|
|
M0.4x0.1
|
0.1
|
6H
|
0.296
|
0.340
|
0.335
|
0.351
|
0.407
|
0.432
|
0.280
|
|
M0.45x0.1
|
0.1
|
6H
|
0.346
|
0.390
|
0.385
|
0.401
|
0.457
|
0.482
|
0.315
|
|
M0.5x0.125
|
0.125
|
6H
|
0.370
|
0.422
|
0.419
|
0.437
|
0.509
|
0.538
|
0.350
|
|
M0.55x0.125
|
0.125
|
6H
|
0.420
|
0.472
|
0.469
|
0.487
|
0.559
|
0.588
|
0.380
|
|
M0.6x0.15
|
0.15
|
6H
|
0.444
|
0.504
|
0.503
|
0.523
|
0.611
|
0.644
|
0.420
|
|
M0.7x0.175
|
0.175
|
6H
|
0.518
|
0.586
|
0.586
|
0.608
|
0.713
|
0.750
|
0.500
|
|
M0.8x0.2
|
0.2
|
6H
|
0.592
|
0.668
|
0.670
|
0.694
|
0.814
|
0.856
|
0.560
|
|
M0.9x0.225
|
0.225
|
6H
|
0.666
|
0.750
|
0.754
|
0.780
|
0.916
|
0.962
|
0.630
|
|
M1x0.25
|
0.25
|
6H
|
0.729
|
0.809
|
0.838
|
0.909
|
1.000
|
1.107
|
0.750
|
|
M1x0.2
|
0.2
|
6H
|
0.783
|
0.858
|
0.870
|
0.933
|
1.000
|
1.092
|
0.800
|
|
M1.1x0.25
|
0.25
|
6H
|
0.829
|
0.909
|
0.938
|
1.009
|
1.100
|
1.207
|
0.850
|
|
M1.1x0.2
|
0.2
|
6H
|
0.883
|
0.958
|
0.970
|
1.033
|
1.100
|
1.192
|
0.900
|
|
M1.2x0.25
|
0.25
|
6H
|
0.929
|
1.009
|
1.038
|
1.109
|
1.200
|
1.307
|
0.950
|
|
M1.2x0.2
|
0.2
|
6H
|
0.983
|
1.058
|
1.070
|
1.133
|
1.200
|
1.292
|
1.000
|
|
M1.4x0.3
|
0.3
|
6H
|
1.183
|
1.258
|
1.270
|
1.350
|
1.400
|
1.509
|
1.100
|
|
M1.4x0.2
|
0.2
|
6H
|
1.183
|
1.258
|
1.270
|
1.333
|
1.400
|
1.492
|
1.200
|
|
M1.6x0.35
|
0.35
|
6H
|
1.221
|
1.321
|
1.373
|
1.458
|
1.600
|
1.736
|
1.250
|
|
M1.6x0.3
|
0.3
|
6H
|
1.275
|
1.360
|
1.405
|
1.465
|
1.600
|
1.703
|
1.300
|
|
M1.6x0.2
|
0.2
|
6H
|
1.383
|
1.458
|
1.470
|
1.537
|
1.600
|
1.690
|
1.400
|
|
M1.7x0.35
|
0.35
|
6H
|
1.321
|
1.421
|
1.473
|
1.558
|
1.700
|
1.836
|
1.350
|
|
M1.8x0.35
|
0.35
|
6H
|
1.421
|
1.521
|
1.573
|
1.658
|
1.800
|
1.936
|
1.450
|
|
M1.8x0.2
|
0.2
|
6H
|
1.583
|
1.658
|
1.670
|
1.737
|
1.800
|
1.896
|
1.600
|
|
M2x0.4
|
0.4
|
6H
|
1.567
|
1.679
|
1.740
|
1.830
|
2.000
|
2.148
|
1.600
|
|
M2x0.25
|
0.25
|
6H
|
1.729
|
1.809
|
1.838
|
1.913
|
2.000
|
2.111
|
1.750
|
|
M2.2x0.45
|
0.45
|
6H
|
1.713
|
1.838
|
1.908
|
2.003
|
2.200
|
2.360
|
1.750
|
|
M2.2x0.25
|
0.25
|
6H
|
1.929
|
2.009
|
2.038
|
2.113
|
2.200
|
2.311
|
1.950
|
|
M2.3x0.45
|
0.45
|
6H
|
1.813
|
1.938
|
2.008
|
2.103
|
2.300
|
2.460
|
1.850
|
|
M2.3x0.4
|
0.4
|
6H
|
1.867
|
1.979
|
2.040
|
2.130
|
2.300
|
2.448
|
1.900
|
|
M2.5x0.45
|
0.45
|
6H
|
2.013
|
2.138
|
2.208
|
2.303
|
2.500
|
2.660
|
2.050
|
|
M2.5x0.35
|
0.35
|
6H
|
2.121
|
2.221
|
2.273
|
2.358
|
2.500
|
2.636
|
2.150
|
|
M2.6x0.45
|
0.45
|
6H
|
2.113
|
2.238
|
2.308
|
2.393
|
2.600
|
2.750
|
2.150
|
|
M3x0.5
|
0.5
|
6H
|
2.459
|
2.599
|
2.675
|
2.775
|
3.000
|
3.172
|
2.500
|
|
M3x0.35
|
0.35
|
6H
|
2.621
|
2.721
|
2.773
|
2.863
|
3.000
|
3.141
|
2.650
|
|
M3.5x0.6
|
0.6
|
6H
|
2.850
|
3.010
|
3.110
|
3.222
|
3.500
|
3.699
|
2.900
|
|
M3.5x0.35
|
0.35
|
6H
|
3.121
|
3.221
|
3.273
|
3.363
|
3.500
|
3.641
|
3.150
|
|
M4x0.7
|
0.7
|
6H
|
3.242
|
3.422
|
3.545
|
3.663
|
4.000
|
4.219
|
3.300
|
|
M4x0.5
|
0.5
|
6H
|
3.459
|
3.599
|
3.675
|
3.775
|
4.000
|
4.172
|
3.300
|
|
M4.5x0.75
|
0.75
|
6H
|
3.688
|
3.878
|
4.013
|
4.131
|
4.500
|
4.726
|
3.750
|
|
M4.5x0.5
|
0.5
|
6H
|
3.959
|
4.099
|
4.175
|
4.275
|
4.500
|
4.672
|
4.000
|
|
M5x0.8
|
0.8
|
6H
|
4.134
|
4.334
|
4.480
|
4.605
|
5.000
|
5.240
|
4.200
|
|
M5x0.5
|
0.5
|
6H
|
4.459
|
4.599
|
4.675
|
4.775
|
5.000
|
5.172
|
4.500
|
|
M5.5x0.5
|
0.5
|
6H
|
4.959
|
5.099
|
5.175
|
5.295
|
5.500
|
5.692
|
5.000
|
|
M6x1
|
1
|
6H
|
4.917
|
5.153
|
5.350
|
5.500
|
6.000
|
6.294
|
5.000
|
|
M6x0.8
|
0.8
|
6H
|
5.134
|
5.334
|
5.480
|
5.586
|
6.000
|
6.221
|
4.200
|
|
M6x0.75
|
0.75
|
6H
|
5.188
|
5.378
|
5.513
|
5.645
|
6.000
|
6.240
|
5.000
|
|
M6x0.7
|
0.7
|
6H
|
5.242
|
5.422
|
5.545
|
5.671
|
6.000
|
6.226
|
5.300
|
|
M6x0.5
|
0.5
|
6H
|
5.459
|
5.599
|
5.675
|
5.787
|
6.000
|
6.184
|
5.500
|
|
M7x1
|
1
|
6H
|
5.917
|
6.153
|
6.350
|
6.500
|
7.000
|
7.294
|
6.000
|
|
M7x0.75
|
0.75
|
6H
|
6.188
|
6.378
|
6.513
|
6.645
|
7.000
|
7.240
|
6.250
|
|
M7x0.5
|
0.5
|
6H
|
6.459
|
6.599
|
6.675
|
6.787
|
7.000
|
7.184
|
6.500
|
|
M8x1.25
|
1.25
|
6H
|
6.647
|
6.912
|
7.188
|
7.348
|
8.000
|
8.340
|
6.750
|
|
M8x1
|
1
|
6H
|
6.917
|
7.153
|
7.350
|
7.500
|
8.000
|
8.294
|
7.000
|
|
M8x0.8
|
0.8
|
6H
|
7.134
|
7.334
|
7.480
|
7.620
|
8.000
|
8.255
|
7.200
|
|
M8x0.75
|
0.75
|
6H
|
7.188
|
7.378
|
7.513
|
7.645
|
8.000
|
8.240
|
7.250
|
|
M8x0.5
|
0.5
|
6H
|
7.459
|
7.599
|
7.675
|
7.787
|
8.000
|
8.184
|
7.500
|