> This is what i did with two plastic kayaks I have. I took a large U bolt
> drilled two holes thru a bulk head, took a 4" round electric box
> cover, drilled two matching holes in it, ran the U bold thru the bulkhead,
> used the metal disc on the back side, put two locking nuts one each leg of
> the U bolt, booggered the threads, smeared thickened epoxy over the
> threads and nuts. I then can use a chain or cable around a tree/car/guard
> rail thru the U bolt opening. If you use a cable (Kryptonite or something)
> you can run it thru the U bolt, around the roof into the car/truck and
> padlock the two ends together inside the car/truck. It's not bulletproof
> but it will slow it down most people. see below .................. B
> .................. B ................. MB .............. UNNMBUUUU
> ................. MB U ................. MB U .............. UNNMBUUUU
> ................. MB .................. B ...................B WHERE U IS
> THE U BOLT, N IS A LOCKING NUT, M IS THE METAL PLATE, B IS THE BULKHEAD -
> it seems i can't get the above diagram to line up correctly. :>(

Well I have to say I would not won't someone to take off in my kayak but I don't think worrying to death about it happening will help ethier. I never go to far form my boat on camping trips and the car top there is always alot of poeple around at home I just hang it in the barn.