[Jason Oldfield]

Thanks David, but I didn't see them on Speedway Motors either. They do have an interesting hollow-steel quarter-turn fastener that could work, but it doesn't look like it's long enough.

On a slightly related note, it appears my Dzus specification question may be answered, as from the Speedway Motors website it looks like Dzus fasteners are specified ONLY by the reach (length from the bottom of the button head to the end of the fastener)??? That seems very odd to me as it leaves the rest of the dimensions pretty ambiguous, especially since it doesn't appear that the manufacturing of said fasteners isn't monitored by some type of standards organization (but, maybe I'm wrong about that).

Keep the suggestions coming...