Question on S2 CU24 85/15 "S" Measurements

[Creag]

I'm looking to add nickel covers and gold pole pieces to the pickups on my S2, but not finding any info on Google or these forums for specs. Measuring them, it appears they're both the same size and not wider on the bridge pickup. But I can't tell with my ruler if they're 49.2mm or 50mm. On the pole pieces, since they're the imported "S" pickups, I'm guessing it requires M3 x 0.5 threading rather than 5-40?

Any help would be much appreciated. Thanks!