Page 681 - 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
Size of Class Upper Lower Size of Class Upper Lower SP
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) +
P2 40 0 40 P2 40 20 20
P3 60 20 40 P3 60 40 20
SL
P5 100 60 40 P4 80 60 20
3B 48 22 26 1·1/4-12UNF 3B 31.750 30.376 70 15 28 29.459
43
cutting tap GH3 38.1 25.4 12.7 GH3 38.1 12.7 25.4 PO
38
73
35
2B
29
2B
41
1-8UNC 2BX 25.400 23.338 103 65 38 21.963 cutting tap 2BX 95 54 41
GH4 50.8 38.1 12.7 GH5 63.5 38.1 25.4
GH5 63.5 50.8 12.7 GH7 88.9 63.5 25.4
GH7 88.9 76.2 12.7 P3 60 20 40
GH8 101.6 88.9 12.7 P4 80 40 40 ST
P2 40 20 20 P5 100 60 40
P3 60 40 20 3B 55 27 28
P4 80 60 20 2B 83 41 42
1·3/8-6UNC cutting tap 34.925 32.174 30.343
3B 42 16 26 GH4 50.8 25.4 25.4 ROLL
113
71
42
2BX
cutting tap GH3 38.1 25.4 12.7 GH8 101.6 76.2 25.4
67
38
29
2B
1-12UNF 2BX 25.400 24.026 92 54 38 23.109 GH6 76.2 50.8 25.4
GH4 50.8 38.1 12.7 GH9 114.3 88.9 25.4
CARBIDE
GH5 63.5 50.8 12.7 P3 60 20 40
GH6 76.2 63.5 12.7 P4 80 40 40
GH7 88.9 76.2 12.7 P5 100 60 40
P3 60 20 40 3B 43 15 28
P4 80 40 40 1·3/8-12UNF cutting tap 2B 34.925 33.551 71 29 42 32.634 LONG
96
P5 100 60 40 GH3 38.1 12.7 25.4
2BX
42
54
cutting tap 2BX 108 68 40 GH7 88.9 63.5 25.4 HAND
26
25
51
3B
1·1/8-7UNC 2B 28.575 26.218 78 38 40 24.648 GH5 63.5 38.1 25.4
GH4 50.8 25.4 25.4 P3 60 20 40 TAPS
GH6 76.2 50.8 25.4 P4 80 40 40
GH8 101.6 76.2 25.4 P6 120 80 40
P2 40 20 20 3B 56 26 30 EG (STI)
P3 60 40 20 2B 85 41 44
1·1/2-6UNC cutting tap 38.100 35.349 33.518
P4 80 60 20 2BX 115 71 44
42
50.8
25.4
3B
25.4
SPECIAL
GH6
76.2
25.4
1·1/8-12UNF cutting tap 2BX 28.575 27.201 69 15 27 26.284 GH4 101.6 76.2 25.4 THREADS,
50.8
2B
40
29
94
40
54
GH8
GH3 38.1 12.7 25.4 GH9 114.3 88.9 25.4 GAUGES
GH5 63.5 38.1 25.4 P3 60 20 40
GH7 88.9 63.5 25.4 P4 80 40 40 THREAD
P3 60 20 40 P5 100 60 40 MILLS
P4 80 40 40 3B 44 14 30
P5 100 60 40 1·1/2-12UNF cutting tap 2B 38.100 36.726 73 29 44 35.809
2BX
52
54
44
98
2B
1·1/4-7UNC cutting tap 3B 31.750 29.393 79 24 28 27.823 GH3 38.1 12.7 25.4 DIES
41
38
41
109
68
2BX
GH7
GH4 50.8 25.4 25.4 GH5 63.5 38.1 25.4
63.5
25.4
88.9
GH6 76.2 50.8 25.4
CENTER
GH8 101.6 76.2 25.4
DRILLS
Technical
info
679