10. Tap Thread Limits (JIS, DIN, ANSI) Intro Helical Coil Wire Thread Inserts, Helical Coil Wire Thread Inserts, Metric Threads EG(STI)M-MF Unit: mm Unified Threads EG(STI) UNC/UNF Unit: mm Majordiameter Pitch Diameter Minordiameter Majordiameter Pitch Diameter Minordiameter SP Size Class BasicSizeBasicSizeUpper LowerTolerance Tolerance(μm) +(μm) +BasicSizeSize Class BasicSizeBasicSizeUpper LowerTolerance Tolerance(μm) +(μm) +BasicSize STI M 2.6 × 0.45 Ib 3.185 2.892 18 6 2.698 Ib 18 6 Ib 18 6 STI No. 2 - 56 UNC 2.773 2.479 2.283GH225.412.7SL STI M 3 × 0.5 3.650 3.324 3.108 G3 38 25 Ib 18 6 STI No. 4 - 40 UNC 3.670 3.258 2.981 Ib 18 6 GH2 25.4 12.7 STI M 4 × 0.7 4.909 4.454 4.151 G4 51 38 STI No. 4 - 48 UNF Ib 3.532 3.189 18 6 2.958 Ib 18 6 STI No. 5 - 40 UNC Ib 4.000 3.589 18 6 3.312 PO STI M 5 × 0.8 6.039 5.519 5.173 G4 51 38 Ib 18 6 STI No. 6 - 32 UNC 4.536 4.021 3.678 Ib 18 6 GH3 38.1 25.4 STI M 6 × 1 7.299 6.649 6.216 G4 51 38 STI No. 6 - 40 UNF Ib 4.330 3.919 18 6 3.642 Ib 18 6 Ib 18 6STIM8×1.259.6248.8128.271STINo.8-32UNC5.1974.6814.338ST G4 51 38 GH3 38.1 25.4 Ib 22 7 STI No. 8 - 36 UNF Ib 5.083 4.625 18 6 4.318 STI M 10 × 1.5 11.948 10.974 10.324 G5 64 51 Ib 18 6 STI No. 10 - 24 UNC 6.201 5.513 5.055 STI MF 10 × 1.25 Ib 11.624 10.812 18 6 10.271 GH2 25.4 12.7 ROLL STI MF 10 × 1 Ib 11.299 10.649 18 6 10.216 Ib 18 6 STI No. 10 - 32 UNF 5.857 5.341 4.998 Ib 22 7 GH2 25.4 12.7 STI M 12 × 1.75 14.273 13.136 12.379 G6 76 64 STI No. 12 - 24 UNC Ib 6.861 6.173 18 6 5.716 STI MF 12 × 1.5 Ib 13.948 12.974 21 7 12.324 Ib 22 7 STI 1/4 - 20 UNCSTIMF12×1.25Ib13.62412.81221712.2718.0007.174GH338.1 6.62625.4CARBIDE STI M 14 × 2 Ib 16.598 15.299 22 7 14.433 Ib 7.528 6.939 18 6 6.545 STI 1/4 - 28 UNF STI MF 14 × 1.5 Ib 15.948 14.974 21 7 14.324 GH2 25.4 12.7 STI M 16 × 2 Ib 18.598 17.299 22 7 16.433 Ib 9.771 8.854 22 7 8.244 STI 5/16 - 18 UNCSTIMF16×1.5Ib17.94816.97421716.324GH3 38.1 25.4 LONG STI M 18 × 2.5 Ib 21.248 19.624 30 10 18.542 STI 5/16 - 24 UNF Ib 9.313 8.624 18 6 8.167 STI MF 18 × 1.5 Ib 19.948 18.974 24 8 18.324 Ib 11.587 10.556 22 7 9.867 STI 3/8 - 16 UNC STI M 20 × 2.5 Ib 23.248 21.624 30 10 20.542STIMF20×1.5Ib21.94820.97424820.324STI3/8 - 24 UNFSTIM22×2.5Ib25.24823.624301022.542GH338.125.4Ib10.90010.2121869.754Ib13.46912.291301011.506HANDTAPS STI 7/16 - 14 UNC STI MF 22 × 1.5 Ib 23.948 22.974 24 8 22.324 GH3 38.1 25.4 STI M 24 × 3 Ib 27.897 25.948 30 10 24.649 Ib 12.762 11.937 18 6 11.388 STI 7/16 - 20 UNF STI MF 24 × 1.5 Ib 25.948 24.974 24 8 24.324 GH3 38.1 25.4 EG (STI) Ib 15.238 13.968 30 10 13.122 STI 1/2 - 13 UNC Miniature Screw Threads (S) Unit: mm GH3 38.1 25.4 STI 1/2 - 20 UNF Ib 14.350 13.524 18 6 12.976 Majordiameter Pitch Diameter MinordiameterSTI 5/8 - 11 UNCSizeClassBasicSizeBasicSizeUpperLowerTolerance Tolerance(μm) +(μm) +BasicSizeSTI5/8 - 18 UNFSTI3/4 - 16 UNFIb18.87517.37630Ib17.70816.7912110716.37616.181SPECIALTHREADS,GAUGESIb21.11220.08121719.392 S 0.5 × 0.125 - 0.500 0.419 15 7 0.380 - 15S0.6×0.150.6000.503GS223-2070.4561310European Steel Conduit Threads (Pg)Majordiameter Pitch Diameter Unit: mm THREADMinorMILLSdiameter S 0.7 × 0.175 0.700 0.586 0.532GS32818-2010S0.8×0.20.8000.6700.608Size Class BasicSizeBasicSizeUpper LowerTolerance Tolerance(μm) +(μm) +BasicSizeGS32818Pg7-20-12.5011.89603011.28DIES - 20 10 Pg 9 - 18 - 15.20 14.53 60 30 13.86 S 0.9 × 0.225 0.900 0.754 0.684 GS4 33 23 Pg 11 - 18 - 18.60 17.93 60 30 17.26 Pg 13.5 - 18 - 20.40 19.73 60 30 19.06 CENTER Pg 16 - 18 - 22.50 21.83 60 30 21.16 DRILLS Pg 21 - 16 - 28.30 27.54 100 50 26.78 Pg 29 - 16 - 37.00 36.24 100 50 35.48 Technical info 681