fine idea andy..... you load the trailer with the kayaks and have storage room too. Are the poles recessed into the wood? as murphy night get involved some how or do the poles sit solid? a novel solution to a problem.
When I've used that type of clamp I just used a spring washer Andyandybear said:. If the nuts loosen, I will go for the locknuts.
Cheers all Andybear