"Malibu told me that they had a bad bunch of Wedges made by a company who wouldnt clean out the shavings from tapping the threads for the bolts"
I've been around the block a few times and have tapped a lot of holes and worked on a few projects where the design just wasn't up to the job. That statement, if it was made by someone in the know at Malibu, is pure B.S., a blatant attempt to shift the blame.
if the bolts are stripping out then they are using too soft of a metal, or too small of a screw. If the bolt is breaking then they either need a larger bolt or higher grade steel, or more of them.