Kreg Zinc Screws are a good choice for a wide variety of indoor projects with limited exposure to the elements. Zinc screws provide adequate rust protection, and serve as an affordable alternative to our more protective Blue-Kote and stainless screw varieties. Kreg #8 x 1-1/2-in Zinc-Plated Interior Pocket Hole Screws (500-Per Box) | SML-C150-500