8-15 x 1/2 Phillips Full Contour Truss Self Tapping Scr Type A Fully Thrd Black Zinc AQPB They have a sharp point

They have a sharp point that easily penetrates metal and wood

These 5-40 x 1 1/2 Slotted Round Machine Screws are fully threaded and made of zinc-plated steel

This 10-32 x 7/8 Phillips round machine screw is fully threaded and made of zinc

The coarse thread design provides a strong hold in drywall and other soft materials

8-15 x 1/2 Phillips Full Contour Truss Self Tapping Scr Type A Fully Thrd Black Zinc AQPB They have a sharp pointThese 8 15 x 1 2 Phillips Full Contour Truss Self Tapping Screws Type A Fully Threaded Black Zinc are designed for use in metal framing applications. They have a sharp point that easily penetrates metal, and a full thread that provides a strong hold. The Phillips drive head allows for easy installation with a standard screwdriver. These screws are made of durable black zinc plated steel for corrosion resistance.