Page 642 - Yamawa_European_Catalogue_YEU23

9. Comparison of pitch diameter tolerance

Intro

For Cutting Tap Unified Fine Thread (UNF)
SP Basic Pitch (+) μm
Dia.
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420

P1
SL 3B 3B 42
No.0-80 UNF
2B 2B 57
GH1 GH2

PO P1 3B 2BX
3B 3B 47
No.1-72 UNF 2B
2B 2B 63
GH1 GH2 Internal threads 3B Internal threads 2B
Internal threads 1B
ST P1
3B 3B 50
No.2-64 UNF
2B 2B 68
GH1 GH2
ROLL
P1
3B 3B 53
No.3-56 UNF
2B 2B 71
GH1 GH2
CARBIDE
P1
3B 3B 58
No.4-48 UNF
2B 2B 78
LONG GH1 GH2

P1 P2
3B 3B 60
No.5-44 UNF
HAND, 2B 2B 80
TAPS GH2 GH3

P1 P2 P3
3B 2BX 3B 63
No.6-40 UNF
EG (STI) 2B 2B 86
GH2 GH3 GH4

P1 P2 P3
SPECIAL 3B 2BX 3B 67
THREADS, No.8-36 UNF
GAUGES 2B 2B 90
GH2 GH3 GH4

THREAD P1 P2 P3
MILLS No.10-32 UNF 3B 2BX 3B 73
2B 2B 98
GH2 GH3 GH4

DIES P1 P2 P3
3B 2BX 3B 77
No.12-28 UNF
2B 2B 105
GH2 GH3 GH4 GH5
CENTER
DRILLS P1 P2 P3
3B 2BX 3B 81
1/4-28 UNF
2B 2B 108
GH2 GH3 GH4 GH5 1B 164
Technical
info

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