New rocker adjuster screws

Hey Guys, i'm trying to find out where to get a decent set of adjusters to replace mine. I'm upgrading my rockers and they came with cup style adjusters. I measured everything and it looks like I may be able to use my current pushrods, but I need to swap out the adjusters to ball-type.

Running Comp 1.5 roller tips. I believe the adjusters to be 7/16-20. Thanks for the help guys.