THREAD SIZE M COUNTERSINK DIA
PITCH DIAMETER		 MINIMUM TAPPING DEPTH TAP MAJ.DIA MAX
MAX MIN MIN 4H MAX 5H MAX 1 DIA 1-1/2 DIA 2 DIA 2-1/2 DIA 3 DIA
METRIC COARSE
M2X0.4 2.30 2.70 2.260 2.295 2.310 2.4 3.4 4.4 5.4 6.4 2.581
M2.2X0.45 2.90 2.40 2.492 2.532 2.547 2.7 3.8 4.9 6.0 7.1 2.845
M2.5X0.45 3.40 2.90 2.792 2.832 2.847 3.0 4.2 5.5 6.7 8.0 3.145
M3X0.5 4.00 3.40 3.325 3.367 3.384 3.5 5.0 6.5 8.0 9.5 3.716
M3.5X0.6 4.70 4.10 3.890 3.940 3.959 4.1 5.9 7.6 9.4 11.1 4.354
M4X0.7 5.30 4.70 4.455 4.509 4.529 4.7 6.7 8.7 10.7 12.7 5.007
M5X0.8 6.40 5.80 5.520 5.577 5.597 5.8 8.3 10.8 13.3 15.8 6.145
M6X1 7.70 7.10 6.650 6.719 6.742 7.0 10.0 13.0 16.0 19.0 7.422
M7X1 8.70 8.10 7.650 7.719 7.742 8.0 11.5 15.0 18.5 22.0 8.422
M8X1.25 10.10 9.50 8.812 8.886 8.911 9.3 13.3 17.3 21.3 25.3 9.787
M10X1.5 12.40 11.80 10.974 11.061 11.089 11.5 16.5 21.5 26.5 31.5 12.131
M12X1.75 14.80 14.20 13.137 13.236 13.271 13.8 19.8 25.8 31.8 37.8 14.478
M14X2 17.10 16.50 15.299 15.406 15.444 16.0 23.0 30.0 37.0 44.0 16.822
M16X2 19.10 18.50 17.299 17.406 17.444 18.0 26.0 34.0 42.0 50.0 18.822
M18X2.5 21.80 21.20 19.624 19.738 19.778 20.5 29.5 38.5 47.5 56.5 21.513
M20X2.5 23.80 23.20 21.624 21.738 21.778 22.5 32.5 42.5 52.5 62.5 23.513
M22X2.5 25.50 25.20 23.624 23.738 23.778 24.5 35.5 46.5 57.5 68.5 25.513
M24X3 28.50 27.90 25.948 26.093 26.135 27.0 39.0 51.0 63.0 75.0 28.238
M27X3 31.50 30.90 28.948 29.093 29.135 30.0 43.5 57.0 70.5 84.0 31.238
M30X3.5 35.20 34.60 32.273 32.428 32.472 33.5 48.5 63.5 78.5 93.5 34.925
M33X3.5 38.20 37.60 35.273 35.428 35.472 36.5 53.0 69.5 86.0 102.5 37.925
M36X4 41.90 41.30 38.598 38.763 38.809 40.0 58.0 76.0 94.0 112.0 41.615
M39X4 44.90 44.30 41.598 41.763 41.809 43.0 62.5 82.0 101.5 121.0 44.615
METRIC FINE
M8X1  9.70 9.10 8.650 8.719 8.742 9.0  13.0 17.0 21.0 25.0 9.422
M10X1 11.70 11.10 10.650 10.719 10.742 11.0 16.0 21.0 26.0 31.0 11.422
M10X1.25 12.10 11.50 10.812 10.886 10.911 11.3 16.3 21.3 26.3 31.3 11.787
M12X1.25 14.10 13.50 12.812 12.898 12.926 13.3 19.3 25.3 31.3 37.3 13.787
M12X1.5 14.40 13.80 12.974 13.067 13.099 13.5 19.5 25.5 31.5 37.5 14.131
M14X1.5 16.40 15.80 14.974 15.067 15.099 15.5 22.5 29.5 36.5 43.5 16.131
M16X1.5 18.40 17.80 16.974 17.067 17.099 17.5 25.5 33.5 41.5 49.5 18.131
M18X1.5 20.40 19.80 18.974 19.067 19.099 19.5 28.5 37.5 46.5 55.5 20.131
M20X1.5 22.40 21.80 20.974 21.067 21.099 21.5 31.5 41.5 51.5 61.5 22.131
M22X1.5 24.40 23.80 22.974 23.067 23.099 23.5 34.5 45.5 56.5 67.5 24.131
M18X2 21.10 20.50 19.299 19.406 19.444 20.0 29.0 38.0 47.0 56.0 20.822
M20X2 23.10 22.50 21.299 21.406 21.444 22.0 32.0 42.0 52.0 62.0 22.822
M22X2 25.10 24.50 23.299 23.406 23.444 24.0 35.0 46.0 57.0 68.0 24.822
M24X2 27.10 26.50 25.299 25.414 25.454 26.0 38.0 50.0 62.0 74.0 26.822
M27X2 30.10 29.50 28.299 28.414 28.454 29.0 42.5 56.0 69.5 83.0 29.822
M30X2 33.10 32.50 31.299 31.414 31.454 32.0 47.0 62.0 77.0 92.0 32.822
M33X2 36.10 35.50 34.299 34.414 34.454 35.0 51.5 68.0 84.5 101.0 35.822
M36X2 39.10 38.50 37.299 37.414 37.454 38.0 56.0 74.0 92.0 110.0 38.822
M39X2 42.10 41.50 40.299 40.414 40.454 41.0 60.5 80.0 99.5 119.0 41.822
M36X3 40.50 39.90 37.948 38.093 38.135 39.0 57.0 75.0 93.0 111.0 40.238
M39X3 43.50 42.90 40.948 41.093 41.135 42.0 61.5 81.0 100.5 120.0 43.238