14. Tap, Thread Limits unit: mm ■ for Unified Threads unit: mm Production data 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) + + + + M 44 ×4 P6 44.000 41.402 120 80 39.670 P1 25 10 M 44 ×3 P5 44.000 42.051 100 60 40.752 G5 64 51 No. 0 - 80 UNF 1.524 1.318 1.181 M 44 ×2 P4 44.000 42.701 80 40 41.835 2B 26 11 M 44 × 1.5 P4 44.000 43.026 80 60 42.376 GH1 12.7 0 P5 100 60 P1 25 10 M 45 × 4.5 45.000 42.077 40.129 ISO2 125 75 No. 1 - 64 UNC 2B 1.854 1.598 28 12 1.425 M 45 ×4 P6 45.000 42.402 120 80 40.670 GH1 12.7 0 P5 100 60 P1 25 10 M 45 ×3 45.000 43.051 41.752 ISO2 106 64 G5 64 51 No. 1 - 72 UNF 1.854 1.626 1.473 P4 80 40 2B 28 12 M 45 ×2 45.000 43.701 42.835 ISO2 90 54 GH1 12.7 0 P4 80 60 P1 25 10 M 45 × 1.5 45.000 44.026 43.376 ISO2 80 48 G4 51 38 No. 2 - 56 UNC 2.184 1.890 1.694 M 45 ×1 P3 45.000 44.350 60 40 43.917 2B 30 13 P5 100 60 GH1 12.7 0 M 48 ×5 48.000 44.752 42.587 ISO2 133 80 P1 25 10 M 48 ×4 P6 48.000 45.402 120 80 43.670 No. 2 - 64 UNF 2B 2.184 1.928 29 12 1.755 P6 120 80 GH1 12.7 0 M 48 ×3 48.000 46.051 44.752 P1 25 10 ISO2 112 67 P4 80 40 G4 51 38 M 48 ×2 48.000 46.701 45.835 No. 3 - 48 UNC 2.515 2.172 1.941 ISO2 95 57 2B 32 14 P4 80 60 GH1 12.7 0 M 48 × 1.5 48.000 47.026 46.376 P1 25 10 ISO2 85 51 No. 3 - 56 UNF 2B 2.515 2.220 31 13 2.024 GH1 12.7 0 P2 40 25 G5 64 51 No. 4 - 40 UNC 2.845 2.433 2.156 2B 34 16 GH1 12.7 0 P1 25 10 G5 64 51 No. 4 - 48 UNF 2.845 2.502 2.271 2B 32 14 GH1 12.7 0 No. 4 - 36 UNS GH1 2.845 2.387 12.7 0 2.081 P2 40 25 No. 5 - 40 UNC 2B 3.175 2.764 35 16 2.487 GH1 12.7 0 P1 25 10 Information Technical No. 5 - 44 UNF 2B 3.175 2.799 34 15 2.550 GH1 12.7 0 Technical-28 799