[Healeys] Grease Zerk Confusion - Or, what a gooey mess!!

[Brashear, Jack, N]

Hi All, I just started to install all new front suspension parts (from
one of the usual big suppliers) on a friend's BN6.  The new king pins
and the lower trunnion big cup nuts came with new zerks installed.  My
Plews brand grease gun connector will not work on any of these zerks -
it's too loose and the goo squirts out around the connection, even if I
shove it on as hard as I can.  My gun works just fine on the original
zerks on the rest of the car.  Soooo, I tried to replace the "new" zerks
with the original AH zerks.  Well, the threads are different.  What do I
have here??  Are the new zerks metric or something??  I thought all
zerks were created equal once, but maybe that's been changed by
outsourcing.  How about the connector on my grease gun - are there
different styles/sizes nowadays??  Someone out there please help me out.
Sheesh.....

As always, many thanks,

Jack "Dry Joints" Brashear