
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 SP Size of Class Upper Lower Tolerance Basic Size of Class Upper Lower Tolerance Basic tap Basic Basic Tolerance tap Basic Basic Tolerance Size Size (μm) + Tolerance Size Size (μm) + Tolerance (μm) + (μm) Size (μm) + (μm) Size P1 20 0 20 P2 40 20 20 P2 40 20 20 P3 60 40 20 SL cutting tap cutting tap P3 60 40 20 P4 80 60 20 ISO1 29 10 19 ISO1 35 12 23 ISO2 48 29 19 ISO2 59 35 24 ISO2X 63 44 19 ISO2X 79 55 24 M4.5×0.75 4.500 4.013 3.688 M6×1 6.000 5.350 4.917 PO ISO3 67 48 19 ISO3 83 59 24 G6 76 64 13 G7 89 76 13 forming tap forming tap G7 89 76 13 G8 102 89 13 G8 102 89 13 G10 127 114 13 ST ISO2X 89 76 13 ISO2X 102 89 13 ISO3X 102 89 13 ISO3X 127 114 13 P1 25 10 15 P2 40 20 20 P2 40 25 15 P3 60 40 20 cutting tap cutting tap P3 55 40 15 P4 80 60 20 ROLL M4.5×0.5 4.500 4.175 3.959 ISO1 24 8 16 ISO1 32 11 21 ISO2 40 24 16 ISO2 53 32 21 ISO3 56 40 16 ISO3 74 53 21 M6×0.75 6.000 5.513 5.188 P1 20 0 20 G5 64 51 13 CARBIDE P2 40 20 20 G6 76 64 12 forming tap cutting tap P3 60 40 20 G7 89 76 13 ISO1 30 10 20 G8 102 89 13 ISO2 50 30 20 ISO2X 89 76 13 LONG M5×0.8 ISO2X 5.000 4.480 70 50 20 4.134 ISO3X 102 89 13 ISO3 70 50 20 P1 25 10 15 G7 89 76 13 P2 40 25 15 forming tap cutting tap G8 102 89 13 P3 55 40 15 HAND ISO2X 89 76 13 ISO1 27 9 18 TAPS ISO3X 102 89 13 ISO2 45 27 18 P1 25 10 15 M6×0.5 ISO3 6.000 5.675 63 45 18 5.459 P2 40 25 15 G5 64 51 13 cutting tap forming tap P3 55 40 15 G6 76 64 12 EG (STI) ISO1 24 8 16 G7 89 76 13 ISO2 40 24 16 ISO2X 76 64 12 M5×0.5 5.000 4.675 4.459 ISO3 56 40 16 ISO3X 89 76 13 SPECIAL G5 64 51 13 THREADS, forming tap G6 76 64 12 GAUGES ISO2X 64 51 13 ISO3X 76 64 12 THREAD P1 25 10 15 MILLS P2 40 25 15 cutting tap P3 55 40 15 M5.5×0.5 5.500 5.175 4.959 ISO1 24 8 16 ISO2 40 24 16 DIES ISO3 56 40 16 CENTER DRILLS Technical info 664