Oxy sensors and anti-seize compound

["Craig D. Niederst" <niederst@telerama.com>]

First, I'd like to thank all the Lister's who responded to my previous oxy
sensor questions I posted awhile back. I decided to go with the Bosch 3-wire
heated universal sensor (PN 13919). Got them for $38 a piece from Rick at
Import Part Specialists. So here's my question. The sensors come with
anti-seize pre-applied to the threads. But it looks as if some of this has
gotten onto the head of the sensor before I even opened them. I contacted
the place I bought them from, and was told they all come that way, and
shouldn't worry about it. Are these sensors ruined due to the anti-seize
being on the head of the sensor around the slits? Or should I just wipe them
off and install them? Anyone else had a similar experience with these
sensors with pre-applied anti-seize? TIA.

Craig
'92 100S (76k)