Page 680 - Yamawa_European_Catalogue_YEU21

10. Tap Thread Limits (JIS, DIN, ANSI)

Intro

Unified Threads (UNC/UNF) Unit: mm
Major Pitch Diameter Minor Major Pitch Diameter Minor
Kind diameter diameter Kind diameter diameter
SP Size of Class Upper Lower Size of Class Upper Lower
tap Basic Basic Tolerance Tolerance Tolerance Basic tap Basic Basic Tolerance Tolerance Tolerance Basic
Size Size (μm) Size Size Size (μm) Size
(μm) + (μm) + (μm) + (μm) +
P1 20 0 20 P1 20 0 20
P2 40 20 20 P2 40 20 20
SL P3 60 40 20 P3 60 40 20
P4 80 60 20 P4 80 60 20
3B 32 12 20 3B 34 12 22
cutting tap 2B 12.700 11.874 52 22 30 11.326 5/8-18UNF cutting tap 2B 15.875 14.958 56 23 33 14.348
PO 2BX 77 47 30 2BX 81 48 33
GH2 25.4 12.7 12.7 GH2 25.4 12.7 12.7
1/2-20UNF GH3 38.1 25.4 12.7 GH3 38.1 25.4 12.7
GH4 50.8 38.1 12.7 GH4 50.8 38.1 12.7
ST GH5 63.5 50.8 12.7 GH5 63.5 50.8 12.7
GH6 76.2 63.5 12.7 GH6 76.2 63.5 12.7
3BX 76 64 12 P2 40 20 20
forming tap G7 12.700 11.874 89 76 13 11.326 P4 80 60 20
2BX
20
76
13
89
P3
40
60
ROLL H5 63.5 50.8 12.7 3B 43 19 24
H7 88.9 76.2 12.7 2B 66 31 35
P2 40 20 20 3/4-10UNC cutting tap 2BX 19.050 17.399 91 56 35 16.299
P3 60 40 20 GH3 38.1 25.4 12.7
CARBIDE
P4 80 60 20 GH4 50.8 38.1 12.7
cutting tap
39
31
9/16-12UNC 3B 14.288 12.913 60 19 20 11.996 GH5 63.5 50.8 12.7
29
76.2
63.5
2B
12.7
GH6
85
2BX
31
54
LONG GH3 38.1 25.4 12.7 GH7 88.9 76.2 12.7
20
P2
40
20
GH4 50.8 38.1 12.7 P3 60 40 20
GH6 76.2 63.5 12.7 P4 80 60 20
P1 20 0 20 3B 35 13 22
HAND P2 40 20 20 2B 60 25 35
TAPS 3/4-16UNF cutting tap 19.050 18.019 17.330
P3 60 40 20 2BX 85 50 35
P4 80 60 20 GH3 38.1 25.4 12.7
3B 33 13 20 GH4 50.8 38.1 12.7
cutting tap 2BX 14.288 13.371 80 48 32 12.761 GH6 76.2 63.5 12.7
EG (STI) 2B 55 23 32 GH5 63.5 50.8 12.7
9/16-18UNF
GH2 25.4 12.7 12.7 P2 40 20 20
GH3 38.1 25.4 12.7 P3 60 40 20
SPECIAL GH4 50.8 38.1 12.7 P4 80 60 20
THREADS, GH5 63.5 50.8 12.7 3B 45 21 24
GAUGES
GH6 76.2 63.5 12.7 2B 70 33 37
P2 40 20 20 7/8-9UNC cutting tap 2BX 22.225 20.391 95 58 37 19.169
THREAD P3 60 40 20 GH3 38.1 25.4 12.7
MILLS P4 80 60 20 GH4 50.8 38.1 12.7
3B 41 19 22 GH5 63.5 50.8 12.7
cutting tap
63
2B
12.7
76.2
55
88.9
33
GH7
5/8-11UNC 2BX 15.875 14.376 88 30 33 13.376 GH6 76.2 63.5 12.7
DIES GH3 38.1 25.4 12.7 P2 40 20 20
GH4 50.8 38.1 12.7 P3 60 40 20
GH5 63.5 50.8 12.7 P4 80 60 20
GH6 76.2 63.5 12.7 3B 39 15 24
CENTER GH7 88.9 76.2 12.7 2B 64 27 37
DRILLS 7/8-14UNF cutting tap 2BX 22.225 21.046 89 52 37 20.262
GH3
12.7
38.1
50.8
GH4 38.1 25.4 12.7
Technical GH5 63.5 50.8 12.7
info GH6 76.2 63.5 12.7
GH7 88.9 76.2 12.7
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