
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 P2 40 20 20 P2 40 20 20 P3 60 40 20 P3 60 40 20 cutting tap SL cutting tap P4 80 60 20 P4 80 60 20 ISO1 35 12 23 ISO1 32 11 21 ISO2 59 35 24 ISO2 53 32 21 M7×1 ISO2X 7.000 6.350 79 55 24 5.917 M8×0.75 ISO3 8.000 7.513 74 53 21 7.188 ISO3 83 59 24 G6 76 64 12 PO forming tap G8 102 89 13 G7 89 76 13 forming tap G10 127 114 13 G8 102 89 13 ISO2X 102 89 13 ISO2X 89 76 13 ISO3X 127 114 13 ISO3X 102 89 13 ST P2 40 20 20 P1 25 10 15 P3 60 40 20 P2 40 25 15 cutting tap cutting tap P4 80 60 20 P3 55 40 15 M7×0.75 7.000 6.513 6.188 M8×0.5 8.000 7.675 7.459 ISO1 32 11 21 ISO1 27 9 18 ISO2 53 32 21 ISO2 45 27 18 ROLL ISO3 74 53 21 ISO3 63 45 18 P1 25 10 15 P2 40 20 20 P2 40 25 15 P3 60 40 20 cutting tap CARBIDE cutting tap P3 55 40 15 P4 80 60 20 M7×0.5 7.000 6.675 6.459 ISO1 27 9 18 ISO1 38 13 25 ISO2 45 27 18 ISO2 63 38 25 ISO3 63 45 18 ISO2X 88 63 25 M9×1.25 9.000 8.188 7.647 P2 40 20 20 ISO3 88 63 25 LONG P3 60 40 20 G7 89 76 13 forming tap cutting tap P4 80 60 20 G9 114 102 12 ISO1 38 13 25 G10 127 114 13 ISO2 63 38 25 ISO2X 114 102 12 HAND M8×1.25 ISO2X 8.000 7.188 88 63 25 6.647 ISO3X 127 114 13 TAPS ISO3 88 63 25 P2 40 20 20 G9 114 102 12 P3 60 40 20 forming tap cutting tap G10 127 114 13 P4 80 60 20 EG (STI) ISO2X 114 102 12 ISO1 35 12 23 ISO3X 127 114 13 ISO2 59 35 24 P2 40 20 20 M9×1 ISO2X 9.000 8.350 79 55 24 7.917 P3 60 40 20 ISO3 83 59 24 SPECIAL THREADS, cutting tap P4 80 60 20 G8 102 89 13 GAUGES forming tap ISO1 35 12 23 G10 127 114 13 ISO2 59 35 24 ISO2X 102 89 13 ISO2X 79 55 24 ISO3X 127 114 13 M8×1 8.000 7.350 6.917 THREAD ISO3 83 59 24 MILLS G7 89 76 13 forming tap G8 102 89 13 G10 127 114 13 ISO2X 102 89 13 DIES ISO3X 127 114 13 CENTER DRILLS Technical info 665