On 8/6/2016 1:05 AM, Uwe Klein wrote:
Am 05.08.2016 um 20:28 schrieb David Weinshenker / Henry Spencer:Stainless steel parts in sliding contact tend to "gall" (surface-to-surface sticking leading to chatter quickly leading to extreme wear) if unlubricated, or (if sliding contact is ongoing) even if lubricated with traditional petroleum-based lubes.
Correct. Stainless fasteners, you can buy off the shelf.
We've ( actually a customer project I was involved in) had a PITA of a
problem with electropolished stainless item's threaded holes ( welded
nuts as well as machined threading ) and the corresponding stainless
screws. If ever a screw was binding even slightly during assembly
waiting a day or two and trying to remove them would be "unsuccesfull".
( torque the head off before it would move in the threads.)
Solution was coating the screws in a special process. ( don't have the
name at hand but can inquire.)