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jgold47 · #9 08-30-2013, 10:57 AM

I did some more research last night. There seems to be a lot of misinformation and conflicting information about TTY bolts in general.

They seem to be clustered around.

1. is there such a thing as a tty bolt. As in, are they a unique bolt or
2. are they just normal bolts installed a certain way?

if #2 is correct, then there must be a very specific torque the OEM is trying to achieve and its possible they know the exact shear point of those bolts

#1 - if you try and buy a 'TTY' bolt, you simply wont find one for sale.

3. regular bolts can be installed with TTY LB's and procedures as the same effect would occur 'assuming the shear torque of the bolt is the same or higher'

4. you can use regular bolts if you take steps to ensure that a) they are as strong (which M10/10,9 bolts should be) and b) you ensure that the torque value doesn't change over time (use threadlocker)

The strange thing is that the 41lb + 90deg is a mathematical equation that should yield another torque value, less accurately (depending on the length of your wrench, and how accurately you measure 90deg).

I don't know, its all very confusing. People say toss'em, people say use'em, people say sub them with normal 10,9's.....

I'll give it a shot and report back...

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