Select Knob missing side screw

The little screw that holds the “Select” knob has magically disappeared.
Can I order that from Isla or if now, what size is it and where can I get the replacement? Without it the know is super loose.

Thank You!

Checked mine, seems to be an M4 × 4mm steel grub in black.

Should be an easy find on ebay / aliexpress / amazon / &c, if you don’t have a local store.

Yeah, it isn’t a screw. I’ve replied to your ticket with instructions on what to do :slight_smile:

Thank you Robbie, I actually figured out what happened it was stuck deep inside of the knob for some reason, it looked like it was gone. So I got it all fixed and working.
Thank you for all the info and help.