The 04B-2 connecting link is also referred to as a 04B-2 master link and is designed to connect two sections of the 04B-2 roller chain. Our premium 04B-2 connecting link conforms to metric ISO and British Standards for interchangeability with other brands. Additionally, this link utilizes precision components that have been heat-treated and shot-peened for fatigue resistance with a high-hold spring clip for retainage. For more information or to get a quote on our 04B-2 connecting link, contact our customer service team, and we will gladly assist you!