[lar874717]

I have seen them in the hardware store, but they are plain grub screws with only one thread, the one that I have removed from the xjoint (nJ) is a 30mm with opposite treads on each end and stop in the middle it, as I have the older model xs pole, is it ok to use the normal grub screw with 1 thread?

Also dose anyone know what the other 4 x little screws name and model are called to replace them ? I know there some kind of safety screw

TIA