I may have mislead everyone by my use of the term "hex nut". The part that is going onto the motor shaft has an internal hex cut into it and a thru hole. This thru hole is a locational slip fit onto the motor shaft. I will be using the loctite to adhere this part to the shaft. Sorry for not...
I have an application where I am attaching a hex nut to a motor shaft with Loctite. The motor is rated to 2.3 IN-LBS and the loctite has a compressive shear strength of 3,495 PSI.
The equation for shafts, Shear Stress Max = (Torque x Radius of Shaft)/(Polar moment of inertia) only takes into...