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So I would interpret the information above as indicating that because of plastic creep, tension relaxation will always be evident in fasteners on plastic components. Therefore it follows that a fastener should be selected which features a prevailing torque feature in order to prevent vibration...

All, Thanks for the responses. The joint comprises a weld stud used to locate a glass-filled thermoplastic component with no metal insert, which is then secured with a Nut. I am investigating Torque retention because it is the easiest method of testing tension retention on actual components in...

All, I am currently looking at replacing fasteners on an automotive product and have been testing a number of alternatives. My tests seem to show that fasteners with a captive washer perform worse than flanged fasteners with regards to torque retention. Does anybody have any advice or can...