<p>These specially threaded screws are designed to cut threads as an they are driven into the untapped holes. A self-tapping screw requires in a pre-drilled pilot hole from the correct size drill. Recommended drill bit sizes vary, depending on the diameter of screw to be used, type of screw points A, B, AB, and High-Low and structural thickness of the substrate. </p> <p>Self tapping screws with finer thread pitch and a blunt point. Recommended for use in heavier gauge sheet metal 0.050 to 0.200 thick, plastics, plywood and composite materials. </p> <b>Features</b> <ul> <li>30000 Pieces</li> </ul> <b>Specifications</b> <ul> <li><b>Size:</b> No.8 x 3/8&quot;</li> <li><b>Point Style:</b> Type B</li> <li><b>Head Style:</b> Pan</li> <li><b>Drive Style:</b> Phillips</li> <li><b>Material:</b> AISI 304 18-8 Stainless Steel</li> <li><b>Thread Size:</b> No.8 x 3/8&quot;</li> <li><b>Thread Coverage:</b> Full Thread</li> <li><b>Thread Style:</b> Right Hand</li> <li><b>Weight:</b> 90 lbs</li> </ul>- SKU: APFN89343