Originally Posted by
Melvang
Reading through this thread, I was wondering if someone was going to mention this.
I have used this method for studs with a "torque spec" of 40,000 foot pounds. The nuts were 6 7/8" flat to flat and the socket was 45 pounds.
Yikes, what are they building? Giant antennas or something? We have a variety here at the office (for checking bolted connections in buildings) but I think the biggest one goes to "only" 1000 ft/lbs.
I have a hard time imagining a pro measuring the bolt stretch on a bicycle bolt that might only be torqued to, say, five or ten Nm. Maybe they measure it with an electron microscope?
I think that for bikes, the challenge would be finding a torque wrench that goes low enough to be accurate at the really low end of the scale.