Two creo mis screw heads and three locking caps were returned for evaluation.Visual inspection shows significant wear on the bottom of the two locking caps.The l5 screw head also shows signs of what appear to be marks made by high speed burr on the outer diameter.The wear pattern on the bottom of the two of the locking caps is confined to the outside edge.This type of wear pattern could indicate that the cap underwent edge loading during tightening.This could occur if the cap was prevented from being able to normalize to the rod during tightening.However, the exact cause of the reported issue could not be determined.
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