Page 683 - Yamawa_European_Catalogue_YEU21

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
Major Pitch Diameter Minor Major Pitch Diameter Minor SP
diameter diameter diameter diameter
Size Class Upper Lower Size Class Upper Lower
Basic Basic Tolerance Tolerance Basic Basic Basic Tolerance Tolerance Basic
Size Size Size Size Size Size
(μm) + (μm) + (μm) + (μm) +
STI M 2.6 × 0.45 Ib 3.185 2.892 18 6 2.698 Ib 18 6
STI No. 2 - 56 UNC 2.773 2.479 2.283
Ib 18 6 GH2 25.4 12.7 SL
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 6
STI M 8 × 1.25 9.624 8.812 8.271 STI No. 8 - 32 UNC 5.197 4.681 4.338 ST
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 UNC 8.000 7.174 6.626 CARBIDE
STI MF 12 × 1.25 Ib 13.624 12.812 21 7 12.271 GH3 38.1 25.4
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 UNC
STI MF 16 × 1.5 Ib 17.948 16.974 21 7 16.324 GH3 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 20.542 GH3 38.1 25.4
HAND
STI MF 20 × 1.5 Ib 21.948 20.974 24 8 20.324 STI 3/8 - 24 UNF Ib 10.900 10.212 18 6 9.754
TAPS
STI M 22 × 2.5 Ib 25.248 23.624 30 10 22.542 Ib 13.469 12.291 30 10 11.506
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
GH3 38.1 25.4
Miniature Screw Threads (S) Unit: mm
STI 1/2 - 20 UNF Ib 14.350 13.524 18 6 12.976
Major Minor SPECIAL
diameter Pitch Diameter diameter STI 5/8 - 11 UNC Ib 18.875 17.376 30 10 16.376 THREADS,
Size Class Upper Lower STI 5/8 - 18 UNF Ib 17.708 16.791 21 7 16.181
Basic Basic Basic GAUGES
Size Size Tolerance Tolerance Size STI 3/4 - 16 UNF Ib 21.112 20.081 21 7 19.392
(μm) + (μm) +
S 0.5 × 0.125 - 0.500 0.419 15 7 0.380
- 15 7 THREAD
S 0.6 × 0.15 0.600 0.503 0.456 European Steel Conduit Threads (Pg) Unit: mm
GS2 23 13 MILLS
Major Minor
- 20 10 diameter Pitch Diameter diameter
S 0.7 × 0.175 0.700 0.586 0.532 Size Class
GS3 28 18 Upper Lower
Basic Basic Tolerance Tolerance Basic
- 20 10 Size Size (μm) + (μm) + Size
S 0.8 × 0.2 0.800 0.670 0.608 DIES
GS3 28 18 Pg 7 - 20 - 12.50 11.89 60 30 11.28
- 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
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