14. Tap, Thread Limits Production data ■ for Metric Threads unit: mm Major Pitch Diameter Minor Major Pitch Diameter Minor Diameter Diameter Diameter Diameter Size Class Upper Lower Size Class Upper Lower Basic Size Basic Size Tolerance Tolerance Basic Size Basic Size Basic Size Tolerance Tolerance Basic Size (μm) (μm) (μm) (μm) + + + + P4 80 40 P5 100 60 b 45 5 M 36 ×4 ISO2 36.000 33.402 118 71 31.670 M 30 × 3.5 30.000 27.727 26.211 ISO2 112 67 D9 117 65 D9 117 65 P5 100 60 M 30 ×3 P5 30.000 28.051 100 60 26.752 M 36 ×3 ISO2 36.000 34.051 106 64 32.752 P4 80 60 D8 104 52 M 30 ×2 ISO2 30.000 28.701 90 54 27.835 P4 80 40 M 36 ×2 36.000 34.701 33.835 D7 91 50 ISO2 90 54 P3 60 40 P3 60 40 M 36 × 1.5 36.000 35.026 34.376 M 30 × 1.5 30.000 29.026 50 15 28.376 ISO2 80 48 ISO2 80 48 M 36 ×1 P3 36.000 35.350 60 40 34.917 M 30 ×1 P3 30.000 29.350 60 40 28.917 M 37 × 1.5 P4 37.000 36.026 80 60 35.376 M 32 ×3 P3 32.000 30.051 60 20 28.752 M 38 ×3 P3 38.000 36.051 60 20 34.752 M 32 ×2 P4 32.000 30.701 80 40 29.835 M 38 ×2 P4 38.000 36.701 80 40 35.835 P4 80 60 P4 80 60 M 32 × 1.5 32.000 31.026 30.376 M 38 × 1.5 38.000 37.026 36.376 ISO2 80 48 ISO2 80 48 M 32 ×1 P3 32.000 31.350 60 40 30.917 M 38 ×1 P3 38.000 37.350 60 40 36.917 P4 80 40 P5 100 60 M 33 × 3.5 ISO2 33.000 30.727 112 67 29.211 M 39 ×4 ISO2 39.000 36.402 118 71 34.670 D9 117 65 D10 130 78 M 33 ×3 P5 33.000 31.051 100 60 29.752 P5 100 60 35.752 M 39 ×3 39.000 37.051 P4 80 40 D8 104 52 M 33 ×2 ISO2 33.000 31.701 80 48 30.835 M 39 ×2 P4 39.000 37.701 80 40 36.835 D7 91 50 P3 60 40 M 39 × 1.5 39.000 38.026 37.376 P3 60 40 ISO2 80 48 M 33 × 1.5 33.000 32.026 31.376 ISO2 80 48 M 39 ×1 P3 39.000 38.350 60 40 37.917 M 33 ×1 P3 33.000 32.350 60 40 31.917 M 40 ×4 P5 40.000 37.402 100 60 35.670 M 34 ×3 P3 34.000 32.051 60 20 30.752 M 40 ×3 P5 40.000 38.051 100 60 36.752 M 34 ×2 P4 34.000 32.701 80 40 31.835 P4 80 40 M 40 ×2 40.000 38.701 37.835 P4 80 60 ISO2 90 54 M 34 × 1.5 34.000 33.026 32.376 ISO2 80 48 P4 80 60 M 40 × 1.5 40.000 39.026 38.376 M 34 ×1 P3 34.000 33.350 60 40 32.917 ISO2 80 48 M 35 ×3 P3 35.000 33.051 60 20 31.752 P5 100 60 M 42 × 4.5 42.000 39.077 37.129 M 35 ×2 P5 35.000 33.701 100 60 32.835 ISO2 125 75 P4 80 60 M 42 ×4 P6 42.000 39.402 120 80 37.670 M 35 × 1.5 35.000 34.026 33.376 ISO2 80 48 P5 100 60 M 42 ×3 42.000 40.051 38.752 M 35 ×1 P2 35.000 34.350 40 20 33.917 ISO2 106 64 Technical Information P4 80 40 M 42 ×2 42.000 40.701 39.835 ISO2 90 54 P4 80 60 M 42 × 1.5 42.000 41.026 40.376 ISO2 80 48 Technical-27 798