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They can/will, but you can prevent that by putting a little oil on them. They are not stainless for a reason, so don't swap them for stainless. Stainless cannot be hardened with the same processes that are typically used for steel bolts due to a low carbon content, so stainless bolts are actually much softer and prone to galling when compared to quality steel bolts. You will find (at least in high power setups) that you will need to get pretty serious when it comes to tightening those bolts.
These collets used to come with bolts that are a little on the short side and swapping them out for longer bolts helped prevent thread failure...I'm not sure if the bolts have been changed since then though, so take a look at yours. They are far superior to the Chinese collets in terms of run-out. All of the cheaper collets have a significant amount of run-out compared to these, which can lead to premature motor failure on high RPM setups.
A few of us with extreme setups have also found that the "fingers" of these collets will twist if the load/torque is great enough. They don't typically fail because of this but it does make the flex difficult to remove/install. If you have this issue, just consider yourself in the "gotta pay if you wanna play" club.
These collets used to come with bolts that are a little on the short side and swapping them out for longer bolts helped prevent thread failure...I'm not sure if the bolts have been changed since then though, so take a look at yours. They are far superior to the Chinese collets in terms of run-out. All of the cheaper collets have a significant amount of run-out compared to these, which can lead to premature motor failure on high RPM setups.
A few of us with extreme setups have also found that the "fingers" of these collets will twist if the load/torque is great enough. They don't typically fail because of this but it does make the flex difficult to remove/install. If you have this issue, just consider yourself in the "gotta pay if you wanna play" club.
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