Helical Spring lockwashers- have you ever used them? I bet you have

[montesa]

Perhaps they are meant to be used with a flange head bolt that has grooves. So when the bolt loosens the rotation is stopped preventing complete loss.

 

[Bocephus123]

Perhaps they are meant to be used with a flange head bolt that has grooves. So when the bolt loosens the rotation is stopped preventing complete loss.

there ya go

 

[Judi]

Dead, buried and forgotten.

yeah, well covid sent the 'science coopting" into overdrive by the left. Science is dead.

here's one escaping ...


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[oologahan]

I guess if the nut starts loosening, the lock washer would slow that down? So, they need renamed to nutlooseslowerdownerwasher?

Actually the Air force study proved that the minute the lock washer lost tension (through vibration) the "lockwasher" would act as a spring and hasten the loss of the nut

 

[TerryMiller]

Well, I, for one, haven't had really bad issues with lock-washers, and I've done a heck of a lot of outdoor working with farm implements and trucks over the years. I also suspect that the use of lock-washers and regular nuts are cheaper than the lock-nuts.

 

[El Pablo]

Perhaps they are meant to be used with a flange head bolt that has grooves. So when the bolt loosens the rotation is stopped preventing complete loss.

The ones I’ve seen must have the torque spec too high for the application then, as they stay flat when I’ve loosened them.

 

[Bocephus123]

f

The ones I’ve seen must have the torque spec too high for the application then, as they stay flat when I’ve loosened them.

fake ones

 

[Buddhaman]

We had an informational session with Fastenal about fasteners. Dry torque sucks and isn't repeatable and lock washers don't work aside from a few expensive options (Nord-Lock). Also, most people don't understand bolt grades and some folks still believe Grade 8 is more brittle than Grade 5.

 

[El Pablo]

We had an informational session with Fastenal about fasteners. Dry torque sucks and isn't repeatable and lock washers don't work aside from a few expensive options (Nord-Lock). Also, most people don't understand bolt grades and some folks still believe Grade 8 is more brittle than Grade 5.

I still claim I sheered a grade 5 bolt with a stubby wrench on my Jeep and it wasn’t a flawed bolt. (There is absolutely no way I was remotely close to what should have been the sheer point )

 

[Bocephus123]

We had an informational session with Fastenal about fasteners. Dry torque sucks and isn't repeatable and lock washers don't work aside from a few expensive options (Nord-Lock). Also, most people don't understand bolt grades and some folks still believe Grade 8 is more brittle than Grade 5.

Grade 8 is a stronger bolt making it less brittle