Star drive mechanically galvanized metal roofing screws feature a notched type 17 drill point ideal for attaching thin metals to wood with ease. They are made of 1022 carbon steel for superior performance and feature a mechanical galvanized zinc plating for durability and corrosion resistance. LoGrip roofing screws feature a low profile head to create a refined appearance when compared to traditional hex head roofing and siding screws. The incoporated EPDM rubber washer beneath the head ensures a secure seal, while the hi-lo threads provide easy drilling, better holding power, and snug and precise fit. LoGrip screws feature a T25 drive, suitable for fast and easy installation and resistant to stripping. Like all painted head roofing screws in this selection, these screws are wet painted. This process creates a long-lasting paint application that stays on and keeps its color.