Ok k, I know this is unusal, but, I called every Mercruiser dealer in my area and no one can get me a bolt or tell the size of the bolt. I have to meet a "minimum order" requirement !

This is item #86 on the Mercruiser Bravo one parts break down. It is the bolt that goes UP from the lower unit, at the rear & goes into the upper drive case. This is the bolt beneath the trim tab on the cavitation plate. Does anyone know the size of this bolt & length? Cost is not the issue here, it's only $1.65 from Mercruiser, but I must wait an undetermined length of time for a dealer to order it, &/or pay $6-7 for fedex/ups. I know you guys know the size of this thing & I could buy one at
the bolt store", so Please tell me !

It's 7/16-14 x 1.5, stainless. The factory bolt does have a locking compound pre-applied. I am sure Loctite would do the job.

man i'm glad to see people like marc that knows what they are talking about on this board, its people like you that make this a special place. Mark

EXCELLENT !!! Ya' can't beat OSO members for info!
Thanks a lot.....now I can finish this job, the boat is sold & I am finishing reassembly of the drive, engine bay rehab, & installation of the hydraulic helm. The OSO members are great for sharing information and knowledge from those that have "been there, done that" !

Just got back from "the Bolt Store".... I bought two bolts, for less than mercruisers 1.65 each.....mine included tax also.
Of course I will have to unscrew the cap on the loc-tite bottle!