Is this area exposed to outside atmosphere? If so, I might suggest a bit of silicone sealant or something over the bare metal to ensure it wont rust. Just a thought.
TV: '06 Ram 1500 SLT QCSB Hemi 4x4
TT: '12 Grey Wolf 27BHKS
Tow Acc: Tekonsha P3 BC, Curt round bar WDH w/sway control, CIPA custom fit tow mirrors