Serrated Flanged Hexagonal Nut 304 Stainless Steel 1/2-13

Made from  18-8  stainless  steel,  these flange locknuts have good chemical resistance and may be mildly  magnetic.  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.  Height includes the  flange.