9. Comparison of pitch diameter tolerance Intro For Forming 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 JIS 2 G7 G8 G10 120 SL M6 x 1M7 x 1 6H ISO2X 150 26 6G ISO3X 176 JIS 2 G7 G9 G10 130 PO M8 x 1.25M9 x 1.256H ISO2X 160 28 6G ISO3X 188 JIS 2 G7 G10 G12 140 M10 x 1.5 6H ISO2X 180 ST 32 6G ISO3X 212 JIS 2 G7 G10 G12 180 M11 x 1.5 6H ISO2X 180 ROLL 32 6G ISO3X 212 JIS 2 G8 G11 G13 160 M12 x 1.75 6H ISO2X 200 34 6G ISO3X 234 CARBIDE JIS 2 G10 G12 G14 170 M14 x 2M16 x 2 6H ISO2X 212 38 6G ISO3X 250 LONG HAND, TAPS EG (STI) SPECIAL THREADS, GAUGES THREAD MILLS DIES CENTER DRILLS Technical info 658