公制扳手与螺丝规格对应关系如下：手规格内六角圆柱头螺钉，规格从0.7mm到25mm不等，具体如下：0.7mm对应M1.60.9mm对应M21.3mm对应M1.4，M2.5，M2.61.5mm对应M1.6，M2，M32mm对应M2.5，M32.5mm对应M3，M43mm对应M4，M54mm对应M5，M65mm对应M6，M86mm对应M8，M108mm对应M10，M1210mm对应M12，M14，M1612mm对应M14，M16，M18，M2014mm对应M18，M2016mm对应M20详情