Threaded Rod Holders

I have the Driftmaster rod holders with the 3/8" threaded shafts. I have an aluminum rod rack across the rear of my boat and it is set up, drilled and tapped for 3/8" threaded rod holders, and I'm currently using Driftmaster. I'm just wondering if there are any other manufacturers that make the threaded screw-in rod holders. Changing shaft thread size is not an option.

Try this I like them no issues
http://www.hillsrodholders.com/index.php

I have one driftmaster and the other 13 are hills i would recommend the hills over the driftmasters this is the second boat i have put them on and could not be happier there strong and have a life time warranty but good luck and bending one or breaking one but if you manage he will replace it