Accutrigger safety adjustment?

[big honkin jeep]

A while back I picked up a model 11 package rifle for a project.
It came with the original Axis/Edge style trigger. After tinkering with it a bit I decided to install an accutrigger and picked one up.

After installation I noticed the safety wasn't engaging/ releasing as it should and needed adjustment.

The safety adjustment screw on the accutrigger I have is threaded but doesn't seem to be slotted or recessed to accept a hex key, screwdriver or tool of any kind. I have seen the yellow, tamper evident coating on Savage and Remington triggers in the past but that's not the case here it seems to be just flat like it's epoxy filled or something.

I kinda scratched around in there with a hex key and a knife tip trying to get some indication of what was in there but didn't see anything obvious as to how to adjust it. I currently have it soaking in kroil to ease things up when I do make an attempt.

I'm sure someone else here must have run across this style of screw and it's secrets so I figured it best to ask here before I make an attempt that might screw something up.
What am I missing and how do I adjust this screw so that my safety works properly?

[sharpshooter]

What you are running into is a soft plastic ball that is installed at the factory to prevent any adjustments after the fact.. a sort of tamper resistant seal.
Just use a drill bit close to the hole size to remove most of it, and a dental pick to get the rest. The screw uses a 5/64 allen wrench.

[big honkin jeep]

Thanks so much. That's what I needed to know.
Waiting on an answer from someone with experience beats hair brained experimentation and mangling parts.

[big honkin jeep]

Got it,
Only took a few minutes with the right tools and knowledge.
Thanks again.