The use of anti-seize can significantly increase the tension in a bolt at a given torque.
Bolt Tension = Torque/K(diameter)
Note the "K" factor for various antiseize compounds can be from 0.11 to 0.15. A plated bolt is about 0.16 whereas a plain bolt "K" is about 0.3.
Going from K=0.3 to K=0.15 will double the bolt tension at a given torque.
Neverseez lists some "K" values:
http://www.neverseezproducts.com/antiseize.htm
Example:
My Toyota Sienna which has 1/2" black unplated wheel studs and recommends a torque of 77 ftlb = 924 inlb
Theoretical Bolt Tension = 924/0.3(0.5) = 6,000 lbs
If I add standard "neverseez" with K=0.13
Bolt Tension = 924/0.13(0.5)= 14,000 lbs
Hopefully this higher tension will not be enough to cause the studs to fatigue and eventually break.
Bolt Tension = Torque/K(diameter)
Note the "K" factor for various antiseize compounds can be from 0.11 to 0.15. A plated bolt is about 0.16 whereas a plain bolt "K" is about 0.3.
Going from K=0.3 to K=0.15 will double the bolt tension at a given torque.
Neverseez lists some "K" values:
http://www.neverseezproducts.com/antiseize.htm
Example:
My Toyota Sienna which has 1/2" black unplated wheel studs and recommends a torque of 77 ftlb = 924 inlb
Theoretical Bolt Tension = 924/0.3(0.5) = 6,000 lbs
If I add standard "neverseez" with K=0.13
Bolt Tension = 924/0.13(0.5)= 14,000 lbs
Hopefully this higher tension will not be enough to cause the studs to fatigue and eventually break.