
9. Comparison of pitch diameter tolerance
Intro
For Cutting Tap Metric Coarse Thread (M)
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
M1 × 0.25 P1 4H 45
M1.1 × 0.25
SL M1.2 × 0.25 ISO1 ISO2 5H 56
P1 4H 48
M1.4 × 0.3 ISO1 ISO2 5H 60
6H 75
PO ISO1 (4H-5H) ISO2X (6HX)
4H 53 ISO2 (6H) ISO3 (6G)
M1.6 × 0.35
M1.7 × 0.35 P1 P2 5H 67 Internal threads 4H Internal threads 6H
M1.8 × 0.35
ISO1 ISO2 6H 85
Internal threads 5H Internal threads 6G
ST
4H 56
M2 × 0.4
P1 P2 P3 5H 71
M2.3 × 0.4
ISO1 ISO2 ISO2X 6H 90
ROLL 4H 60
M2.2 × 0.45
M2.5 × 0.45 P1 P2 P3 5H 75
M2.6 × 0.45
ISO1 ISO2 ISO2X 6H 95
CARBIDE 4H 63
P1 P2 P3 5H 80
M3 × 0.5
ISO1 ISO2 ISO3 6H 100
20 ISO2X 6G 120
LONG
4H 71
P1 P2 P3 P4 5H 90
M3.5 × 0.6
ISO1 ISO2 ISO3 6H 112
HAND, 21 ISO2X 6G 133
TAPS
4H 75
M4 × 0.7 P1 P2 P3 5H 95
M4.5 × 0.75 ISO1 ISO2 ISO3 6H 118
EG (STI) 22 ISO2X 6G 140
4H 80
P1 P2 P3 5H 100
SPECIAL M5 × 0.8 ISO1 ISO2 ISO3 6H 125
THREADS, 24 ISO2X 6G 149
GAUGES
4H 95
M6 × 1 P2 P3 P4 5H 118
THREAD M7 × 1 ISO1 ISO2 ISO3 6H 150
MILLS 26 ISO2X 6G 176
4H 100
P2 P3 P4 5H 125
DIES M8 × 1.25
M9 × 1.25 ISO1 ISO2 ISO3 6H 160
28 ISO2X 6G 188
CENTER
DRILLS
Technical
info
646