Lock Nut Finish Plain Hex Height 8 13/32 mm Hex Type External Tooth Lock Washer Hex Width 13 mm Lock Type Lock Nut with External Tooth Lock Washer Material Stainless Steel Material Grade/Class 18-8 Pack Size Small Pack Rockwell Hardness - System of Measurement Metric Thread Direction Right Hand Thread Pitch 1.25 mm Thread Size M8-1.25 Package Quantity 50