Probably a replacement, I think. I can't get to my basses now, but are they all Switchcraft connectors. It looks like the slotted flathead screws you have are too big (the head is sticking up past the connector). You should have smaller oval head machine screws with a Phillips head. I believe that all the screws are stainless steel as well.
The substitution should be functionally just fine (many people like Neutriks better than Switchcraft) and is cheap to change if it really bothers you.