Forum Discussion

profdant139's avatar
profdant139
Explorer II
Jan 25, 2019

Questions: self drilling/ tapping screws for chassis work

I'm getting ready to install my underbelly cover -- there will be aluminum C channel beams (to support the foam panels and the coroplast under-skin) attached to the underside of the trailer's frame me...
Cummins12V98's avatar
Cummins12V98
Explorer III
Jan 28, 2019
profdant139 wrote:
Cummins, thanks for the tip -- I see that the underside of the head is serrated, which will serve the same function as a lockwasher, I think??


I would still use a larger "Fender" washer.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,324 PostsLatest Activity: Oct 05, 2025