1/2"-13 x 1 1/4", Full Thread Grade 5 Hex Serrated Flange Screw Z/P, 10 ea

Hex Serrated Flange Screws offer a locking head design with built-in serrations on the bearing face of the flange. These serrations allow the screw to lock onto its installation surface providing excellent resistance to loosening due to vibration.

Product Cross References: 5020MWW5