Autofab Universal Fender Mounts are designed for securely mounting fiberglass fenders, bedsides, cabsides, door panels,  and roof skins. Urethane grommets are 1.5" OD and fit into a .75" hole. Each mount includes a 3" long x 1.5" wide steel tab, urethane gormmet, stainless steel allen screw and nylock nut.
Like the Autofab Hood Pin, these mounts will help prevent stress cracking associated with mounting your fiberglass with metal fastners. They look trick also.