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USER GUIDE
       TAPS  ISO Metric Thread



            Nominal Dimensions According to UNI 4535-64

                Tap flank diameter production tolerances for ISO 6H
                Nut threads limit dimensions - nut threads ISO 6H


                                                              Coarse Pitch Threads
                                                     1/8·H
                               Nut thread                     Dimensions in mm
                  1/2·H  H1                         h3        H = 0.86603P
                H                       60°                   H1 =  5  H = 0.54127P
                                                                   8
                                               60°
                  1/2·H                                            17
                                        Screw                 h3 =   H = 0.61343P
                           1/4·H            1/6·H                  24
                               r
                                                                         3
                                                              d2 = D2 = d- H = d-0.64952P
                      DD2 D1            P           d3 d2 d              4
                                                              d3 = d-2h3 = d-1.22687P
                                                              r = H = 0.14434P
                                                                 6


                                                                              Flank Dia. Tap
                Nominal   Pitch   Flank  Minor Diameter  Thread Depth  Radius Tolerance 6H d2  Flank Dia. Tap
                                                                                             Tolerance 6H
                  Dia.            Dia.   Screw   Nut    Screw   Nut
                  d=D      P     d2=D2                                   r     Min.   Max.   Min.   Max.
                                          d3      D1     h3      H1
                  M1.6    0.35    1.373   1.171  1.221   0.215  0.189   0.051  1.393  1.407  1.373  1.458
                  M1.8    0.35    1.573   1.371  1.421   0.215  0.189   0.051  1.593  1.607  1.573  1.658
                   M2      0.4    1.740   1.509  1.567   0.245  0.217   0.058  1.761  1.776  1.740  1.830
                  M2.2    0.45    1.908   1.648  1.713   0.276  0.244   0.065  1.931  1.946  1.908  2.003
                  M2.5    0.45    2.208   1.948  2.013   0.276  0.244   0.065  2.231  2.246  2.208  2.303
                   M3      0.5    2.675   2.387  2.459   0.307  0.271   0.072  2.699  2.715  2.675  2.775
                  M3.5     0.6    3.110   2.764  2.850   0.368  0.325   0.087  3.137  3.155  3.110  3.222
                   M4      0.7    3.545   3.141  3.242   0.429  0.379   0.101  3.574  3.593  3.545  3.663
                  M4.5    0.75    4.013   3.580  3.688   0.460  0.406   0.108  4.042  4.061  4.013  4.131
                   M5      0.8    4.480   4.019  4.134   0.491  0.433   0.115  4.510  4.530  4.480  4.605
                   M6      1      5.350   4.773  4.917   0.613  0.541   0.144  5.385  5.409  5.350  5.500
                   M7      1      6.350   5.773  5.917   0.613  0.541   0.144  6.385  6.409  6.350  6.500
                   M8     1.25    7.188   6.466  6.647   0.767  0.677   0.180  7.226  7.251  7.188  7.348
                   M9     1.25    8.188   7.466  7.647   0.767  0.677   0.180  8.226  8.251  8.188  8.348
                  M10      1.5    9.026   8.160  8.376   0.920  0.812   0.217  9.068  9.096  9.026  9.206
                  M11      1.5    10.026  9.160  9.376   0.920  0.812   0.217  10.068  10.096  10.026  10.206
                  M12     1.75    10.863  9.853  10.106  1.074  0.947   0.253  10.911  10.943  10.863  11.063
                  M14      2      12.701  11.546  11.835  1.227  1.083  0.289  12.752  12.786  12.701  12.913
                  M16      2      14.701  13.546  13.835  1.227  1.083  0.289  14.752  14.786  14.701  14.913
                  M18      2.5    16.376  14.933  15.294  1.534  1.353  0.361  16.430  16.466  16.376  16.600
                  M20      2.5    18.376  16.933  17.294  1.534  1.353  0.361  18.430  18.466  18.376  18.600
                  M22      2.5    20.376  18.933  19.294  1.534  1.353  0.361  20.430  20.466  20.376  20.600
                  M24      3      22.051  20.319  20.752  1.840  1.624  0.433  22.115  22.157  22.051  22.316
                  M27      3      25.051  23.319  23.752  1.840  1.624  0.433  25.115  25.157  25.051  25.316
                  M30      3.5    27.727  25.706  26.211  2.147  1.894  0.505  27.794  27.839  27.727  28.007
                  M33      3.5    30.727  28.706  29.211  2.147  1.894  0.505  30.794  30.839  30.727  31.007
                  M36      4      33.402  31.093  31.670  2.454  2.165  0.577  33.473  33.520  33.402  33.702
                  M39      4      36.402  34.093  34.670  2.454  2.165  0.577  36.473  36.520  36.402  36.702
                  M42      4.5    39.077  36.479  37.129  2.760  2.436  0.650  39.152  39.202  39.077  39.392
                  M45      4.5    42.077  39.479  40.129  2.760  2.436  0.650  42.152  42.202  42.077  42.392
                  M48      5      44.752  41.866  42.587  3.067  2.706  0.722  44.832  44.885  44.752  45.087
                  M52      5      48.752  45.866  46.587  3.067  2.706  0.722  48.832  48.885  48.752  49.087
                  M56      5.5    52.428  49.252  50.046  3.374  2.977  0.794  52.512  52.568  52.428  52.783
                  M60      5.5    56.428  53.252  54.046  3.374  2.977  0.794  56.512  56.568  56.428  56.783
                  M64      6      60.103  56.639  57.505  3.681  3.248  0.866  60.193  60.253  60.103  60.478
                  M68      6      64.103  60.639  61.505  3.681  3.248  0.866  64.193  64.253  64.103  64.478
                Metric Thread MA  old UNI  159  profile )                                        Nut Tolerance  SH8

                              (

                  M1.7    0.35    1.473   1.246  1.246   0.227  0.227   0.040  1.493  1,507  1.473  1.529
                  M2.3     0.4    2.040   1.780  1.780   0.260  0.260   0.040  2.061  2.076  2.040  2.120
                  M2.6    0.45    2.308   2.016  2.016   0.292  0.292   0.050  2.331  2.346  2.308  2.388



            ISCAR
   722      ISCAR
   722
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