9. Comparison of pitch diameter tolerance
Intro
For Cutting Tap Metric Coarse Thread (M)
Basic Pitch (+) μm SP
Dia.
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420

4H 112
M10 × 1.5 P2 P3 P5 5H 140 SL
M11 × 1.5 ISO1 ISO2 ISO3 6H 180
32 ISO2X 6G 212

4H 125
P2 P4 P5 5H 160
PO
M12 × 1.75
ISO1 ISO2 ISO3 6H 200
34 ISO2X 6G 234

4H 132 ST
M14 × 2 P2 P4 P5 P6 5H 170
M16 × 2 ISO1 ISO2 ISO3 6H 212
38 ISO2X 6G 250

4H 140
ROLL
M18 × 2.5 P2 P4 P5 P6 5H 180
M20 × 2.5
M22 × 2.5 ISO1 ISO2 ISO3 6H 224
42 ISO2X 6G 266
CARBIDE
4H 170
P3 P5 P6 P7 5H 212
M24 × 3
ISO1 ISO2 ISO3 6H 265
48 ISO2X 6G 313
LONG
4H 170
P3 P5 P7 5H 212
M27 × 3
ISO1 ISO2 ISO3 6H 265 HAND
48 ISO2X 6G 313
TAPS
P7 4H 180
M30 × 3.5 P3 P6 P8 5H 224
M33 × 3.5 ISO1 ISO2 ISO3 6H 280 EG (STI)
53 ISO2X 6G 333

P7 4H 190
M36 × 4 P3 P6 P8 5H 236
SPECIAL
M39 × 4 ISO1 ISO2 ISO3 6H 300
THREADS,
60 ISO2X 6G 360
GAUGES
P7 4H 200
P3 P6 P8 5H 250
THREAD
M42 × 4.5
M45 × 4.5 ISO1 ISO2 ISO3 6H 315
MILLS
63 ISO2X 6G 378

P8 4H 212
DIES
P4 P6 P9 5H 265
M48 × 5
ISO1 ISO2 ISO3 6H 335
71 ISO2X 6G 406
CENTER
DRILLS

Technical
info

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