Premier series 80-4 offset link is a ANSI Standard premium 80-4 offset link that utilizes a two cotter design for fastening. 80-4 offset links are also commonly referred to as #80-4 half links and are made for ANSI 80-4 roller chain, it is engineered to make it possible for adjusting the chain length, adding links into a strand, or for making quick miscellaneous repairs. Premier Series offset links are manufactured utilizing top-grade steel alloys, are supplied with heat-treated and shot-peened parts, and are the highest strength ANSI links we offer. A common issue with a chain is that the offset link is considered the weakest link, specialty advanced engineering on this link has made it as strong as possible to prevent this issue. For additional information or to get a quote please contact our customer support team and we will be happy to assist you!