14. Tap, Thread Limits ■ for BSW Threads unit: mm ■ for European Parallel Pipe Threads (G) 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) + + + + 3/32 BSW 48 - 2.381 2.042 32 15 1.704 G 1/8 - 28 - 9.728 9.147 43 21 8.566 1/8 BSW 40 - 3.175 2.768 35 15 2.362 G 1/4 - 19 - 13.157 12.301 50 25 11.445 5/32 BSW 32 - 3.969 3.460 40 18 2.952 G 3/8 - 19 - 16.662 15.806 50 25 14.950 3/16 BSW 24 - 4.762 4.085 44 21 3.407 G 1/2 - 14 - 20.955 19.793 57 28 18.631 7/32 BSW 24 - 5.556 4.879 44 21 4.201 G 5/8 - 14 - 22.911 21.749 57 28 20.587 1/4 BSW 20 - 6.350 5.537 46 23 4.724 G 3/4 - 14 - 26.441 25.279 57 28 24.117 5/16 BSW 18 - 7.938 7.034 49 23 6.130 G 7/8 - 14 - 30.201 29.039 57 28 27.877 3/8 BSW 16 - 9.525 8.509 51 25 7.493 G 1 - 11 - 33.249 31.770 72 36 30.291 7/16 BSW 14 - 11.112 9.950 56 28 8.788 G 1 1/4 - 11 - 41.910 40.431 72 36 38.952 1/2 BSW 12 - 12.700 11.345 61 30 9.990 G 1 1/2 - 11 - 47.803 46.324 72 36 44.845 9/16 BSW 12 - 14.288 12.933 61 30 11.578 5/8 BSW 11 - 15.875 14.396 63 30 12.917 3/4 BSW 10 - 19.050 17.424 69 33 15.798 7/8 BSW 9 - 22.225 20.418 69 33 18.611 1 BSW 8 - 25.400 23.367 74 36 21.334 ■ for European Steel Conduit Threads (Pg) unit: mm Major Pitch Diameter Minor Diameter Diameter Size Class Upper Lower Basic Size Basic Size Tolerance Tolerance Basic Size (μm) (μm) + + Pg 7 - 20 - 12.50 11.89 60 30 11.28 Pg 9 - 18 - 15.20 14.53 60 30 13.86 Pg 11 - 18 - 18.60 17.93 60 30 17.26 Pg 13.5 - 18 - 20.40 19.73 60 30 19.06 Pg 16 - 18 - 22.50 21.83 60 30 21.16 Pg 21 - 16 - 28.30 27.54 100 50 26.78 Pg 29 - 16 - 37.00 36.24 100 50 35.48 Information Technical Technical-34 805