M16 17.0mm 25.4mm 3.4mm. M8 8.7mm 13.5mm 2.5mm. M12 13.0mm 19.5mm 2.5mm. M10 10.7mm 16.6mm 2.5mm. M4 4.4mm 7.6mm 1.8mm. M6 6.5mm 10.8mm 1.8mm. Nord-Lock created the original wedge-locking technology that secures bolted joints, even when exposed to severe vibration and dynamic loads.
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