18-8 Stainless Steel square drive flat head sheet metal screws are corrosion and rust resistant. Square Drive style used to reduce the chance of stripping when installed properly. To "go green" and reduce our use of plastic all product quantities will be packaged in as few packages as possible. Listing photo is generic for the fastener type listed in this listing and is not to scale.Please refer to the description for fastener details. We will respond with the requested information quickly.