Power Pro Premium wafer-head self-drilling sheet metal screws are a powerful tool to have in your arsenal when performing wood-to-metal fastening. They deliver superior performance with a faster drive time and stronger pull-out rating. They feature a star drive, premium exterior coating and self-drilling, winged tip. The star drive prevents cam-out and offers increased stability while driving. The self-drilling tip with wings quickly penetrates and attaches wood to metal up to 1/4 in thick. Great for general household repairs, renovations, improvements and DIY projects, the sharp threads of these screws draw materials together and ensure a secure hold. These screws are approved for use with all woods and treated lumber.