@Alec_t yeah, it was an old one query but with no other answer around the internet, this is what i ended up on and commented hoping notifications like the one brought me back now brings the OP back and i get a response.
Hi, I have this issue right now,
I know my tap is supposed to have a 2mm Allen key screw but I can't see the screw and my Allen Key doesn't grip anything inside screw area.
how did you resolve this?