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 the more protective Blue-Kote and stainless screw varieties. 1-1/4 in. zinc pocket-hole screwsFor pocket hole joineryMade of steelDry lubricant coating for rust-resistance and to help ease driving torqueA sun-seal weather-resistant coatingMaxi-Loc washer head to sit flush in the pocket holeType 17 auger tip design is self-drilling