Stainless steel screws have excellent corrosion resistance in most environments. A flange under the head distributes pressure over the surface, eliminating the need for a washer.

These screws are chemical and oil resistant, nonconductive, and lightweight. The flange eliminates the need for a washer, distributing pressure where the screw meets the surface.

These screws have a flange that's at least 10% larger than a standard flange for more gripping power. Serrations under the head provide mild vibration resistance.