I had a similar issue with sidekick mounts. I needed longer screws in order to use my shim to raise the mounts so that I could then get my finger under the bar to release the lock button when the floats were in the lowest "down" position.
I looked all over town to try and find some longer stainless steel 10-32 x 2" phillips pan head machine screws but did not have any luck. I also found out that the well nuts deform so much when tightenend for the first time that you cannot back the mount screw all the way out and then expect to reuse the same well nuts because they will be all torn up.
Therfore I had to run around to try and find new well nuts or screws or both so I could remount the bar up on my shims and hopefully have enough space to get my finger between the hull and bar mount to access the lock button when changing the position of the floats
I finally found new 10-32 well nuts at Home Depot, of all places, that were shorter in length than the ones that came in the Hobie kit so that now the stock kit mount screws (10-32 x 1-3/4") would reach the end of these shorter well nuts and engage the threads to anchor the mounts soldily to the hull. So far its working ok.
kepnutz