Hex Washer Head Mechanical Galvanized Roofing Screws Crimson Red Finish - #10 1022 Carbon Steel with mechanical zinc galvanized plating for superior corrosion resistance 1/2" OD EPDM Bonded washer to prevent leaking and create a better seal Designed for metal to wood applications and features Hi-Lo threading for easy drilling, better holding power and a tight fit These screws are wet painted for a long lasting application that stays on and keeps its color and features a notched, type 17 drill point for fast and easy installation Mechanically galvanized metal roofing screws with neoprene bonded washers 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. Fastgrip hex washer head roofing screws have a strong "V-Neck" head to completely cover the inner diameter of the EPDM bonded washer for a high installation strength and a better seal. Roofing screws in this selection feature a unique Hi-Lo thread style for easy drilling, better holding power, and snug and precise fit.