All 2st broken zerk fitting

I broke the zerk fitting off the bottom of my linkage. How do I repair that? Are they threaded in or pressed in from the factory? If threaded, do you just use an ez-out like a broken off screw?
Thanks!

should be able too just tap a small flat blade screw driver in the remainind hole and undo it if you dont have a easy out as the are only threaded in about 1/4"

I believe the zerk is a 6x1.0 metric thread, I buy them at my local ace hardware.

You guys rock! I'll let you know how it goes after work tomorrow.

A small torx bit or a Robertson screwdriver works well if you tap them in to unscrew it also