It took all day to get 4 slotted bolts out of intake! From under boat of course. That makes it tough!
I don't want to go thru that again.
How does chrome hold up for fresh water marine use, in aluminum? I found some grade 8 chromed socket head (flat). This seems like the ticket for removal.
Also found stainless socket head, flat head, which would seem the obvious choice. But the slotted ones I removed were stainless, and one twisted off.In my opinion, chrome plated bolts are a big no way. I doubt they're grade 8, (not doubting you, doubting the bolt) and they'll rust just like any other steel bolt. Stainless is OK, but it's not very srtong. In racing, they won't allow stainless. My suggestion is a regular black oxide screw or bolt and use plenty of antisieze.