500, 11/4quot; COARSE WASHER HEAD SELF TAPPING SCREW | eBay
The 11/4Inch #8 Coarse Pocket Hole Screws with WasherHead prevents overdriving in pocket bottoms, which is especially critical in composite and plywood work pieces. The selftapping type 17 auger tip eliminates the need to predrill, and its larger diameter steel shank creates a