This icon is meant to represent a link of chain. It is composed of three links that are represented by intersecting spherical shapes connected by a straight line. It looks just like three links of chain that interlock together.
This is the Link icon for Windows 10
. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.