Page 677 - 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) +
P1 25 10 15 3BX 38 25 13
P2 40 25 15 2BX 64 51 13
cutting tap 3B 3.175 2.764 22 10 12 2.487 No.6-40UNF forming tap G5 3.505 3.094 38.1 25.4 12.7 2.817 SL
64
51
13
2B
19
H3
35
16
GH2 25.4 12.7 12.7 H5 63.5 50.8 12.7
GH3 38.1 25.4 12.7 P1 20 0 20
No.5-40UNC
3BX 38 25 13 P2 40 20 20 PO
2BX 51 38 13 P3 60 40 20
forming tap G4 3.175 2.764 51 38 13 2.487 3B 25 11 14
51
64
13
39
18
2B
21
G5
H3 38.1 25.4 12.7 cutting tap 2BX 4.166 3.650 59 38 21 3.307 ST
H5 63.5 50.8 12.7 GH2 25.4 12.7 12.7
P1 25 10 15 GH3 38.1 25.4 12.7
P2 40 25 15 No.8-32UNC GH4 50.8 38.1 12.7
cutting tap 3B 3.175 2.799 21 15 12 2.550 GH5 63.5 50.8 12.7 ROLL
9
2B
19
38
34
13
51
3BX
GH2 25.4 12.7 12.7 2BX 64 51 13
GH3 38.1 25.4 12.7 G5 64 51 13
No.5-44UNF
3BX 38 25 13 G6 4.166 3.650 76 64 12 3.307
2BX 51 38 13 forming tap G7 89 76 13 CARBIDE
forming tap G4 3.175 2.799 51 38 13 2.550 G8 38.1 25.4 12.7
13
102
89
H3
13
51
64
G5
H3 38.1 25.4 12.7 H5 63.5 50.8 12.7
H5 63.5 50.8 12.7 P1 20 0 20 LONG
P1 20 0 20 P2 40 20 20
P2 40 20 20 P3 60 40 20
P3 60 40 20 3B 24 10 14
3B 25 11 14 cutting tap 2B 4.166 3.708 38 17 21 3.401 HAND
TAPS
cutting tap 2BX 3.505 2.990 38 18 20 2.647 GH2 25.4 12.7 12.7
21
2B
58
37
2BX
58
20
38
GH2 25.4 12.7 12.7 No.8-36UNF GH3 38.1 25.4 12.7
GH3 38.1 25.4 12.7 GH4 50.8 38.1 12.7
EG (STI)
No.6-32UNC GH4 50.8 38.1 12.7 3BX 51 38 13
forming tap
GH5 63.5 50.8 12.7 2BX 64 51 13
3BX 51 38 13 G5 4.166 3.708 64 51 13 3.401
SPECIAL
2BX 64 51 13 H3 38.1 25.4 12.7 THREADS,
forming tap G6 3.505 2.990 76 64 12 2.647 P1 20 20 20 GAUGES
G5
H5
63.5
13
64
50.8
51
12.7
0
P2
76
89
13
G7
20
40
H3 38.1 25.4 12.7 P3 60 40 20 THREAD
H5 63.5 50.8 12.7 3B 27 13 14 MILLS
cutting tap 4.826 4.138 3.680
P1 25 10 15 2B 42 20 22
P2 40 25 15 2BX 62 40 22
P3 55 40 15 GH2 25.4 12.7 12.7 DIES
9
3B
20
2B
36
GH4
38.1
50.8
No.6-40UNF cutting tap 2BX 3.505 3.094 23 16 14 2.817 No.10-24UNC GH3 38.1 25.4 12.7
12.7
12.7
20
GH5
51
31
50.8
63.5
GH2 25.4 12.7 12.7 3BX 51 38 13
CENTER
GH3 38.1 25.4 12.7 2BX 76 64 12
forming tap G7 4.826 4.138 89 76 13 3.680
GH4 50.8 38.1 12.7 G6 76 64 12 DRILLS
H4 50.8 38.1 12.7
H6 76.2 63.5 12.7 Technical
info
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