Replacement Threaded Retaining Nuts.
Lots of the products we stock incorporate some sort of captive nut to enable the removal of a part easily such as products like flexi hose joiners, non-return valves, removable strainer cages, etc
There are two sizes of retaining nuts we stock small and large
Small – Thread Dia: 51 mm | Outer Nut Dia: 60mm | Hole Dia: 44.70mm
Large – Thread Dia: 61.40 mm | Outer Nut Dia: 71.30mm | Hole Dia: 52.60mm