Originally Posted by Zillon
No, the OEM bolts are 10.9 bolts.
What seems to be the case, is that the torque spec on the strut mount hardware is hyper-critical. A M8x1.25 grade 10.9 bolt has a torque rating of only 22-27 ft-lbs. That is why these are one-time use fasteners - they are designed to be torqued once and only once to 25 ft-lbs. If they are over-torqued, they stretch, which might induce clunking.
If anything, Ford should have gone with a bigger bolt. A M10 grade 10.9 bolt has a much higher torque rating at 45-53 ft-lbs.
Alas, I have no scientific proof just yet. I'll know more later today.
cool beans, man let us know
, I don't know why thye would go with such a small bolt for a critical area
Sonic Crew #10 Shade
2013 FocusFest 1st Place Trophy (Sedan,Coupe,Wagon - MK1-MK3)
2013 FocusFest Trophy - STNation Choice
2012 Ford Focus SE Sport-5 speed-203A package
Basline 1 -155.48hp 145.80 tq
93 oct. Lunchbox delete & K-N Drop in filter.
Dyno 2 -161.86 hp 151.6 tq
- 93 oct. RDC 2.5" Catback & K-N Drop in filter.
1954 Ford F100 - Shop truck in process