Through searching I was able to find the size of the bolts I will need for the steering gear, however for the hard metal line that allows the P/S fluid to equalize between the passenger and driver side of the rack while steering; I cannot find the size I will need for the flare fitting. I tried 10mm with a 1.0 pitch but it's to small. (Fits great for clutch and brakes though.) My best guess is that it's 12mm like the other 2 bolts I'll need for the rack, but I'd like to make sure.

 

Are you just trying to block them off, or something else?

If you're converting the powered rack to manual take the threaded ends off of the lines, fill them with JBWeld and screw them back in.

-chris