I took the screws out of one of my sled's connectors and measured them, so I don't see how it could be wrong. I can't see that there is anything all that special about them, other than being metric.

I think you mean the screws on the Empeg itself. Those are slightly nonstandard and have a shoulder so the docking connector can self-align with the mating connector in the sled. Heather asked about the screws for the sled though. The screws for the sled are fully threaded M3x0.5 x 8mm.