Page 644 - 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

P3 P5
SL P4
1 3/8-12 UNF 3B 2BX 3B 154
2B 2B 208
GH3 GH5 GH7 1B 312
PO
P3 P5
P4
1 1/2-12 UNF 3B 2BX 3B 159
2B 2B 210
ST GH3 GH5 GH7 1B 317

ROLL

3B 2BX
2B
CARBIDE
Internal threads 3B Internal threads 2B
Internal threads 1B

LONG

HAND,
TAPS

EG (STI)

SPECIAL
THREADS,
GAUGES

THREAD
MILLS

DIES

CENTER
DRILLS

Technical
info

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