The last remnant of the West Roman Empire was conquered in 486 when Clovis defeated Syagrius who had ruled over northern Gaul. That part of the Frankish kingdom would be called Neustria (the New Land) as opposed to Austrasia (the Eastern Land), which was the original core territory of the Franks.
Grab bar mounting brackets made specifically for fiberglass installation have discs that safely distribute the weight of a person and prevent the fiberglass from cracking. By attaching the brackets to wall studs with bolts, you ensure that the grab bar will not pull out from the tub or shower wall when in use.
Caulk the back of the mounting flange and then attach the grab bar using the screws supplied with the bar. These should be at least 1 Â¾ inches in length to penetrate the tile, drywall and at least 1 inch of the stud. Get longer screws with the same type head and matching finish if they are not long enough.