This eye bolt is made from grade 304 Machined stainless steel for corrosion resistance and durability, making it perfect for boating needs. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Sea-Dog eye bolts with shoulder are forged hot dipped galvanized construction and feature UNC threadsDesigned to take inline loads shouldered eyebolts can handle limited side loading Comes complete with UNC galvanized nuts