reenmachine
20+ Year Stangneter 
Just a point of interest that's semi-pertinent to this topic...
If you have 3 full threads engaged, the joint is as strong as the material it's threaded into. That is, you're not going to strip the threads out of the hole. We had to do this analysis back in engineering school, and then we did the actual tensile testing to failure to show it. It's actually like 2.88 threads or something like that. The "minimum 3 threads" thing is a rule of thumb used throughout engineering design, and of course margin guidelines suggest using a multiple of this, depending on the application.
Even if you've got 1000 lbs. of drivetrain hanging there, that's 250 lbs. per bolt, which really isn't squat when you consider that a grade 5 5/16" bolt fails in tension at about 6400 lb. and a grade 8 5/16" bolt fails in tension at about 8000 lbs.
The whole point of this dorky treatise is that you don't need to worry about finding a way to get an inch of engagement. Carb plates do look sketchy, but they're fine. Take note that most of the people saying that they're dangerous are those who haven't ever used one.
If you have 3 full threads engaged, the joint is as strong as the material it's threaded into. That is, you're not going to strip the threads out of the hole. We had to do this analysis back in engineering school, and then we did the actual tensile testing to failure to show it. It's actually like 2.88 threads or something like that. The "minimum 3 threads" thing is a rule of thumb used throughout engineering design, and of course margin guidelines suggest using a multiple of this, depending on the application.
Even if you've got 1000 lbs. of drivetrain hanging there, that's 250 lbs. per bolt, which really isn't squat when you consider that a grade 5 5/16" bolt fails in tension at about 6400 lb. and a grade 8 5/16" bolt fails in tension at about 8000 lbs.
The whole point of this dorky treatise is that you don't need to worry about finding a way to get an inch of engagement. Carb plates do look sketchy, but they're fine. Take note that most of the people saying that they're dangerous are those who haven't ever used one.
