Lockwashers of the split type are USELESS!
Not my opinion: NASA told that in their March 1990 "Fastener Design Manual", and who am I to contradict NASA?
PDF here: https://ntrs.nasa.gov/api/citations/19900009424/downloads/19900009424.pdf
Lockwashers of the split type are USELESS!
Not my opinion: NASA told that in their March 1990 "Fastener Design Manual", and who am I to contradict NASA?
PDF here: https://ntrs.nasa.gov/api/citations/19900009424/downloads/19900009424.pdf