Lug nut torque

[montara24d]

Originally Posted by jimcumminsw

No. You use a static torque value to check the bolt/nut to insure that it has been correctly torque. The static torque has a lower torque value than dynamic torque which has a higher value this is what you use tighten the rims too. Torque has been checked this way in the automotive and heavy equipment industry since the early 80’s and what I use to check them.
Jim W.

Not sure I understand. Are you saying that if the book says that the torque setting is 140lbs. You set the torque wrench to 130lbs & go over the lug nuts?
JOHN

[jimcumminsw]

Originally Posted by montara24d

Not sure I understand. Are you saying that if the book says that the torque setting is 140lbs. You set the torque wrench to 130lbs & go over the lug nuts?
JOHN

Yes, this is the general idea but you need to know if the hardware is an SAE grade 5 or SAE grade 8 or higher. Each grade and size of bolt/nut has their own unique torque value that is based on standardize testing.
Here is a link to Fastenal data that maybe able to help you determine the proper static torque for checking.

http://www.fastenal.com/content/documents/FastenalTechnicalReferenceGuide.pdf

Jim W.