Blue-Kote is the newest generation of rust-resistant screws from Kreg, providing up to 400% more weather resistance than zinc-plated screws. It's the best choice for the majority of exterior pocket-hole screw applications and general exterior construction. Deep square drive offers optimum driver engagement. Large Maxi-Loc head provides incredible hold strength. Blue-Kote finish provides an amazing weather-resistant finish. Case-hardened steel means no bending and no breaking. Self-tapping tip requires no pilot holes.This Blue-Kote #8 x 2" coarse washer-head screw comes in a 50 pack.