Put an end to screws that dive below the surface and leave an ugly chipped out hole - PowerHead screws feature a broad, flat head that simply won't pull through. The 9/16" diameter head offers superior holding power and is perfectly sized for a FastCap screw cap. Plus, when used with an Impact Driver, the cutting nibs on the underside of the head shear away material till the head sits perfectly flush. You can also leave the head proud or use our Custom Screw Cap Punch Kit to create a recess for a flush-mounted veneer cap. Self-tapping tips. Zinc coating. #10 Screws.