Metric CoarseSize [mm]Pitch [mm]Tap drill [mm]Clearance drill [mm]1.00.250.75 1.10.250.85 1.20.250.95 1.40.31.1 1.60.351.251.81.70.351.3 1.80.351.45 20.41.62.42.20.451.75 2.50.452.052.903.00.52.53.403.50.62.93.904.00.73.34.504.50.753.7 50.84.25.506156.60716 81.256.89.091.257.8 101.58.512.0111.59.5 121.7510.214.01421216.01621418.0182.515.5 202.517.5...