Page 640 - Yamawa_European_Catalogue_YEU23

9. Comparison of pitch diameter tolerance

Intro

For Cutting Tap Unified Coarse Thread (UNC)
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

P2 P3 P4
SL 3B 2BX 3B 108
3/8-16 UNC
2B 2B 144
GH3 GH4 GH5 GH6 1B 215

PO P2 P3 P4
3B 2BX 3B 116
7/16-14 UNC
2B 2B 154
GH3 GH4 GH5 GH6 1B 233
ST P2 P3 P4
3B 2BX 3B 121
1/2-13 UNC
2B 2B 165
GH3 GH4 GH5 GH6 1B 246
ROLL
P2 P3 P4
3B 2BX 3B 128
9/16-12 UNC
2B 2B 172
GH3 GH4 GH6 1B 258
CARBIDE
P2 P3 P4
3B 2BX 3B 136
5/8-11 UNC
2B 2B 182
LONG GH3 GH4 GH5 GH6 GH7 1B 271

P2 P3 P4
3B 2BX 3B 144
3/4-10 UNC
HAND, 2B 2B 195
TAPS GH3 GH4 GH5 GH6 GH7 1B 292

P2 P3 P4
3B 2BX 3B 154
7/8-9 UNC
EG (STI) 2B 2B 207
GH3 GH4 GH5 GH6 GH7 1B 311

P2
SPECIAL P3 P5
THREADS,
GAUGES 1-8 UNC 3B 2BX 3B 167
2B 2B 223
GH3 GH4 GH5 GH7 GH8 1B 334
THREAD
MILLS P3 P5
P4
1 1/8-7 UNC 3B 2BX 3B 180
2B 2B 238
DIES GH4 GH6 GH8 1B 358

P3 P5
P4
CENTER 1 1/4-7 UNC 3B 2BX 3B 182
DRILLS 2B 2B 243
GH4 GH6 GH8 1B 365

Technical
info

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