Posted by john eickhof [108.162.245.77] on Tuesday, July 19, 2022 at 15:46:53 :
In Reply to: Nuts posted by Todd Miller [172.70.210.147] on Monday, July 18, 2022 at 22:00:33 :
look for round dimples on the raised segments, they would indicate that the legs were crimped thus making it a 'shakeproof' or lock nut, this method was used prior to the manufacture of nylon or steel locknuts in the 1950s