Cherrymax "bulbed" rivet
cherrymax is a locked spindle blind rivet with a visibly inspectable mechanical locking device and its own installation washer, which eliminates the problems resulting from worn tool anvils. it is called a "bulbed" fastener due to its large blind side bearing surface, developed during the installation process. cherrymax rivets are used in thin sheet applications and for use in materials that may be damaged by other types of blind rivets. the cherrymax rivet is the most reliable, high strength structural fastener with visual inspectability in the world today. it features the "safe-lock" locking collar for more reliable joint integrity.