Good work.
You need to change how the strap connects at the front. Direct contact between the stainless, and mild steel slot will cause some bi-metallic corrosion. The mild steel body will be anode and the environment down there is bad; water and salt. The mild steel will therefore corrode faster. I suggest you put a plastic strip between the two parts to electrically insulate. That will sort it.
You need to change how the strap connects at the front. Direct contact between the stainless, and mild steel slot will cause some bi-metallic corrosion. The mild steel body will be anode and the environment down there is bad; water and salt. The mild steel will therefore corrode faster. I suggest you put a plastic strip between the two parts to electrically insulate. That will sort it.