Quote:
Originally Posted by leathermang
Can you be a little more specific.... like the physics you claiming...?
I think the difference you are attributing the difference in removing effort of other bolts after their heads are taken off is due to intervening variables such as percent of thread contact and corrosion .....
Not a difference in the basic concept of the threads pulling against the bottom of the bolt head to produce what we think of as torque and hope that it translates to pull down on the item needing to be held.
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The benz auto flywheel bolt is a 1 or 2 use bolt designed to stretch more than a standard bolt. Not sure on the manual flywheel bolt, which doesnt have the same narrow neck. The result of grinding off the head of the automatic bolt is that its barely hand tight. You never have to drill out the threaded portion.