I'm sorry, I don't understand this. 4/3 is twice as much as 2/3 and not varied by a third.
All I was trying to say was that 142200 is the tensile force in lbs and not torque in ft-lbs as suggested by rb1957.
So, 3560 ft-lb torque applied on a 1.5" bolt will produce a tensile force of 142200...
thread404-143701
Although the thread has been closed, I just saw it today. A comment from rb1957 (Aerospace) says:
rb1957 (Aerospace)
4 Jan 06 15:13
a word of caution about diamondjim's table.
preload can vary by a third when using torque control ...
ie on a 1.5" bolt (his last line) a...