ThreadDiam. Pitch HoleDiam. HC-M 3.65mm 0.5mm 3.2mm HC-M3 4.91mm 0.7mm 4.2mm HC-M4 6.04mm 0.8mm 5.2mm HC-M5 7.3mm 1.0mm 6.3mm HC-M6 9.62mm 1.25mm 8.4mm HC-M8 9.3mm 1mm 8.3mm HC-M8x1 11.95mm 1.5mm 10.5mm HC-M10 11.62mm 1.25mm 10.4mm HC-M10x1.25 14.27mm 1.75mm 12.5mm HC-M12 13.62mm 1.25mm 12.25mm HC-M12x1.25