Streetmaster 318???

Maybe it’s just me, but I don’t think I’d put 12 points there. It’s just tight on those inside runners, and being able to use an open ended wrench comes in handy sometimes.

And I get you’re not gonna torque those to spec with an open ended wrench. But sometimes in those tight spots being able to get an open ended wrench in there is nice.
You could be right. Might be best to use a bolt with a 3/8" six point hex head.