Roof bars

[Sdao38]

Hi, I'm just about to install the demar 2 bar rails on my 64 plate leased Berlingo

Should I be concerned about using the demar supplied bolts on the pre threaded roof mount points?

Is it worth using lithium grease or anything similar to pre lube the threads to prevent any corrosion?

It's a 2 bar system, so I'm guessing front and back mount points are best ignoring the midpoint?

Thanks

[Sdao38]

Checked my threads today and one has a cap missing and is already rusty, if I put a bar bolt in this and leave it in place is it going to turn into one big nasty blob of corrosion that is impossible to remove?!

[old son]

Put some grease on the thread. It'll be fine.