The U.S. Patent Office recently granted Triangle Fastener Corporation patent protection on screws that utilize BURR BUSTER thread and point design like the PANEL-TITE metal-to-wood self-piercing screws.

• The point greatly reduces the amount burrs/chips (swarfs) that occur when the screw penetrates steel. These chips can damage the sealing washer and rust on the panel.

• The low-angle thread helps eliminate over-driving and improves the resistance to back-out.