9. Comparison of pitch diameter tolerance
Intro
For Forming Tap Metric Fine Thread (MF)
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

JIS 2 G5 G6 90
MF3 × 0.35 6H ISO2X 90 SL
19 6G ISO3X 109

JIS 2 G5 G6 100
MF4 × 0.5
6H ISO2X 100
MF5 × 0.5
20 6G ISO3X 120
ISO2X (6HX) Class G for JIS 2 Internal threads PO
ISO3X (6GX)
JIS 2 G5 G6 G7 100 Internal threads 6H JIS 2 Class Internal threads
MF6 × 0.5 6H ISO2X 112
Internal threads 6G
20 6G ISO3X 132 ST
JIS 2 G5 G6 G7 G8 100
MF6 × 0.75 6H ISO2X 132
22 6G ISO3X 154
ROLL
JIS 2 G6 G7 G8 120
MF8 × 0.75 6H ISO2X 132
22 6G ISO3X 154
CARBIDE
JIS 2 G7 G8 G10 120
MF8 x 1
6H ISO2X 150
MF9 x 1
26 6G ISO3X 176
LONG
JIS 2 G7 G8 G10 130
MF10 x 1
6H ISO2X 150
MF11 x 1
26 6G ISO3X 176
HAND
MF10 x 1.25
JIS 2 G7 G9 G10 130
TAPS
6H ISO2X 160
MF11 x 1.25
28 6G ISO3X 188

MF12 x 1
JIS 2 G8 G10 140 EG (STI)
MF14 x 1 6H ISO2X 160
MF16 x 1
26 6G ISO3X 186

JIS 2 G9 G10 G11 180
SPECIAL
MF12 x 1.25
6H ISO2X 180
THREADS,
MF14 x 1.25
28 6G ISO3X 208
GAUGES
MF12 x 1.5 JIS 2 G8 G10 G12 150
MF14 x 1.5
6H ISO2X 190
THREAD
MF15 x 1.5
MF16 x 1.5 32 6G ISO3X 222
MILLS

DIES

CENTER
DRILLS

Technical
info

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