A 40-stain stainless steel hollow pin connecting link is also called a master link and is designed to conjoin two sections of a 40-stain stainless steel hollow pin chain. Our 40 stainless steel hollow pin connecting link is precision manufactured from high-quality 304-grade stainless steel and utilizes two E-Clips to retain the side plate onto the link assembly. For more information or to get a quote on our 40 stainless steel hollow pin connecting link, contact our customer support team, and we will gladly assist you!