Profile Stem Bolts are all new. It\'s still an SAE thread, but the heads are now take a 6mm allen key. The bolt heads are 11.8mm across.
The threads are SAE 5/16 - 18, check to see if that will work for your stem if you intend to use them in a Non-Profile stem.
If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or fitted.More information on returns