In a message dated 10/3/2007 3:19:00 PM Central Daylight Time,
jrmcarthur@verizon.net writes:
> Good day to all! Can anyone tell me why the bolts that mount the caliper to
>
> the vertical link cost almost $10 apiece from Moss? That is $39 and change
> for 4 bolts!What is so special about them? As far as I can see, they are
> 7/16" Fine thread by 1 1/2" long. Please, someone shed some light on this
> for me. Thanks!.......Jim McArthur- CF17672U
>
Is your life worth $40? These are special bolts in that they are of the
strength required and they have shoulders that are the appropriate diameter and
length. Buying off the shelf bolts, even hardened ones, they will not have
shoulders that are the right length and possibly the right diameter.
The load on these bolts is in shear. When you step on the brakes the
calipers apply a torque to the brake rotor and the bolts take up the
reactionary
torque. This force is transmitted from the bore in the calipers to the
shoulder
of the bolts and then to the caliper mounting brackets on the vertical link.
Don't compromise this interface, your life may depend on it.
Besides if you buy 7/16 UNF grade 8 bolts at the hardware store they'll cost
you $3 or $4 anyway. Pay the extra and get the right parts.
Dave
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