Shop › RRBIB - Rolls Royce bib Image 1 of 1 RRBIB - Rolls Royce bib £7.00 9/16 dia. bib for taps. To solder on 5/16 pipe.Rolls Royce nut sold hereBib and Nut also sold together as a set at a reduced price Quantity: Add To Cart Added! 9/16 dia. bib for taps. To solder on 5/16 pipe.Rolls Royce nut sold hereBib and Nut also sold together as a set at a reduced price