Kreg 1,200-Count 1-1/4" #8 Coarse Pan Head Pocket-Hole Screws are made of case-hardened steel and have a zinc-plated finish. They are self-tapping and have a square-drive head. The flat-bottom head and smooth shank draw the pocket-hole joint together tightly. The Maxi-Loc washer head is for standard Kreg pocket holes. 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.