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Registered
Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
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Bob, The factory (OEM) CV-joint bolts are strength class 12.9 alloy steel. This is the highest strength class in common metric fasteners. One has to get into the exotic "Aerospace" type alloys to do better. If properly installed and tightened (critical) the 12.9 strength class bolts are more than adequate. I believe our host sells the fasteners individually and you can get them from other vendors but often only by the box (typically 25). Mcmaster-Carr may sell them individually or in small quantities. What year and model is your car? What is the size (measure diameter across theads or shank) and length (from under the head to the tip of the bolt threads) of the damaged bolts?
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