
10. Tap Thread Limits (JIS, DIN, ANSI) Intro Metric Threads (M, MF) Unit: mm Major Minor Major Minor Pitch Diameter Pitch Diameter Kind diameter diameter Kind diameter diameter Size of Class Upper Lower Tolerance Basic Size of Class Upper Lower Tolerance Basic SP tap Basic Basic Tolerance tap Basic Basic Tolerance Size Size (μm) + Tolerance Size Size (μm) + Tolerance (μm) + (μm) Size (μm) + (μm) Size P3 60 20 40 P3 60 20 40 P6 120 80 40 P6 120 80 40 P7 140 100 40 P7 140 100 40 SL cutting tap cutting tap P8 160 120 40 P8 160 120 40 M45×4.5 45.000 42.077 40.129 M48×4 48.000 45.402 43.670 ISO1 75 25 50 ISO1 71 24 47 ISO2 125 75 50 ISO2 118 71 47 ISO2X 155 105 50 ISO2X 148 101 47 PO ISO3 175 125 50 ISO3 165 118 47 P3 60 20 40 P3 60 20 40 P6 120 80 40 P5 100 60 40 cutting tap P7 140 100 40 P7 140 100 40 ST cutting tap P8 160 120 40 M48×3 ISO1 48.000 46.051 67 22 45 44.752 M45×4 45.000 42.402 40.670 ISO1 71 24 47 ISO2 112 67 45 ISO2 118 71 47 ISO2X 142 97 45 ISO2X 148 101 47 ISO3 157 112 45 ISO3 165 118 47 P3 60 20 40 ROLL P3 60 20 40 P5 100 60 40 P5 100 60 40 P6 120 80 40 cutting tap cutting tap P7 140 100 40 P7 140 100 40 M45×3 ISO1 45.000 43.051 64 21 43 41.752 M48×2 ISO1 48.000 46.701 57 19 38 45.835 CARBIDE ISO2 106 64 42 ISO2 95 57 38 ISO2X 136 94 42 ISO2X 120 82 38 ISO3 148 106 42 ISO3 133 95 38 P3 60 20 40 P2 40 20 20 LONG P4 80 40 40 P4 80 60 20 cutting tap P6 120 80 40 P5 100 80 20 cutting tap M45×2 ISO1 45.000 43.701 54 18 36 42.835 P6 120 100 20 ISO2 90 54 36 M48×1.5 ISO1 48.000 47.026 48 16 32 46.376 HAND ISO2X 115 79 36 ISO2 80 48 32 TAPS ISO3 126 90 36 ISO2X 105 73 32 P2 40 20 20 ISO3 112 80 32 P4 80 60 20 P2 40 20 20 EG (STI) P5 100 80 20 P3 60 40 20 cutting tap P6 120 100 20 P4 80 60 20 cutting tap M45×1.5 45.000 44.026 43.376 ISO1 48 16 32 P5 100 80 20 M48×1 48.000 47.350 46.917 ISO2 80 48 32 ISO1 45 15 30 SPECIAL ISO2X 105 73 32 ISO2 75 45 30 THREADS, GAUGES ISO3 112 80 32 ISO2X 95 65 30 P2 40 20 20 ISO3 105 75 30 P3 60 40 20 THREAD cutting tap P4 80 60 20 MILLS M45×1 ISO1 45.000 44.350 40 14 26 43.917 ISO2 66 40 26 ISO2X 86 60 26 ISO3 92 66 26 DIES P4 80 40 40 P6 120 80 40 P8 160 120 40 cutting tap P9 180 140 40 CENTER M48×5 48.000 44.752 42.587 ISO1 80 27 53 DRILLS ISO2 133 80 53 ISO2X 163 110 53 ISO3 186 133 53 Technical info 673