JIS General Tap Dimensions Spiral Pointed and Spiral Fluted, JIS (Table 350) General Dimensions - Metric Ground Pitch Diameter Limit Diameter Pitch Overall Length of Length of Shank Size of ThreadLimits Length Thread Square Diam. Square Class Basic Minimum Maximum A B C D E M2 0.4 40 15 5 3 2.5 2 1.740 1.750 1.770 M2.3 0.4 42 15 5 3 2.5 2 2.040 2.050 2.070 M2.6 0.45 44 16 5 3 2.5 2 2.308 2.318 2.333 M3 0.5 46 18 6 4 3.2 2 2.675 2.685 2.700 M3.5 0.6 48 18 6 4 3.2 2 3.110 3.120 3.135 M4 0.7 52 20 7 5 4 2 3.545 3.555 3.575 M4.5 0.75 55 20 7 5 4 2 4.013 4.023 4.043 M5 0.8 60 22 7 5.5 4.5 2 4.480 4.490 4.510 M6 0.751 6262 2024 77 6 4.5 2 5.513 5.523 5.54364.525.3505.3605.380 M7 1 65 6 8 6.2 5 2 6.350 6.360 6.380 0.75 62 20 8 6.2 5 2 7.513 7.525 7.550 M8 1 70 30 8 6.2 5 2 7.350 7.360 7.380 1.25 70 30 8 6.2 5 2 7.188 7.198 7.223 M9 1.25 72 30 8 7 5.5 2 8.188 8.198 8.223 1 70 30 8 7 5.5 2 9.350 9.362 9.387 M10 1.25 75 32 8 7 5.5 2 9.188 9.198 9.223 1.5 75 32 8 7 5.5 2 9.026 9.041 9.066 M11 1.5 80 38 9 8 6 2 10.026 10.041 10.066 1 70 30 9 8.5 6.5 2 11.350 11.365 11.395 M12 1.251.5 8082 3838 99 8.5 6.58.56.5 2 11.188 11.203 11.233211.02611.04111.071 1.75 82 38 9 8.5 6.5 2 10.863 10.878 10.908 1.25 80 38 11 10.5 8 2 13.188 13.203 13.233 M14 1.5 88 42 11 10.5 8 2 13.026 13.041 13.071 2 88 42 11 10.5 8 2 12.701 12.716 12.746 1 75 30 13 12.5 10 2 15.350 15.365 15.395 M16 1.5 95 45 13 12.5 10 2 15.026 15.041 15.071 2 95 45 13 12.5 10 2 14.701 14.716 14.746 1.5 95 45 14 14 11 2 17.026 17.041 17.071 M18 2 95 45 14 14 11 2 16.701 16.716 16.751 2.5 100 48 14 14 11 2 16.376 16.396 16.431 M20 1.52.5 95100 4548 1515 1515 1212 2 19.026 19.041 19.076218.37619.39618.431 M22 1.52.5 95115 4555 1616 1717 1313 2 21.026 21.041 21.076220.37620.39620.431 M24 1.53 95120 4558 1818 1919 1515 2 23.026 23.041 23.076222.05122.07122.111 M26 1.53 95130 4562 1818 2020 1515 2 25.026 25.041 25.076224.05124.07124.076 M28 1.5 105 45 8 21 17 2 27.026 27.041 27.076 M30 1.53.5 105135 4565 2020 2323 1717 2 29.026 29.041 29.076227.72727.74727.787 M32 1.5 105 45 22 24 19 2 31.026 31.041 31.076 M33 1.5 110 45 22 25 19 2 32.026 32.041 32.076 M34 1.5 110 45 24 26 21 2 33.026 33.041 33.076 M36 1.5 110 45 24 28 21 2 35.026 35.041 35.076 Note: Dimensions are in millimeters 654 Threading Technical WWW.OSGTOOL.COM