Metric Serrated Flanged Hexagonal Nut Zinc M12 * 1.75 Grade 10.9

Serrations grip the material surface instead of the threads for easy installation and mild vibration resistance. The flange distributes pressure where the nut meets the material surface, eliminating the need for a separate washer. Comparable in strength to Class 8.8 bolts, they're suitable for fastening most machinery and equipment. Height includes the flange.

Zinc-plated steel flange locknuts resist corrosion in wet environments.