6-20 x 1/4 Phillips Flat Undercut Self Tapping Screw Type AB Fully Threaded Zinc NSY The full height heavy hex

The full height heavy hex design provides increased strength and stability

They have a combination Phillips and slotted drive for easy installation and removal

The 1/4-20 x 1/2 Phillips Round Machine Screw Fully Threaded Black Zinc is a versatile and durable fastener designed for a wide range of applications

and other structural projects

6-20 x 1/4 Phillips Flat Undercut Self Tapping Screw Type AB Fully Threaded Zinc NSY The full height heavy hexThese screws are designed for use in metal applications. They have a flat undercut head that sits flush with the surface of the material, and a self tapping tip that creates its own threads as it is driven in. The screws are fully threaded, providing maximum holding power. They are made of zinc plated steel for corrosion resistance.