These screws are made of steel that is on par with Grade 12.9 steel in strength, making them suitable for high-strength fastening. Utilize them for earth-moving equipment like bulldozers and excavators as well as heavy-duty stamping applications. In order to handle higher torque than a socket head or hex head screw, the head makes 12 points of contact with a wrench. There is no need for an additional washer because the flange distributes pressure where the screw touches the surface.