Quote:
Originally Posted by pfsantos
These bolts have a 'seat' under the head that goes into the flexplate and align it and fit very snug. Spend the money and get the OEM bolts, especially considering they're not easy to get to and are in a place you don't want a bolt to fail. At the least, you may end up with vibrations.
Cheaper: https://www.*******.com/products/mercedes-clutch-flywheel-bolt-1089900419 |
The implication in this posting is that the un-threaded portion of the fastener functions as a dowel. Threaded fasteners are
NOT dowels, they are not locating devices. The threaded portion of the fastener, and the un-threaded portion are the same diameter, and have a clearance in the plates/flywheel of ~.019-.020". A dowel is fitted at .0000 to -.0005"(interference).
The strength of a fastener with a metric designation of 10.9 is ~145,000psi (ultimate), and ~131,000psi (yield).
The ARP SAE8740 fasteners have strength of 180,000psi (minimum ultimate), and 162,000psi (minimum yield).
The vendor in the link is F-C-P