I am trying already the third to get a response to my question without any result. Please do not ask for more information. Instead ask specific, clarifying questions. This is my question:

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How to calculate the torque necessary to get the required clamping force of a SS$304$ screw turned without lubrication into aluminum $6061-$T$6$ as a function of the screw OD and pitch.

Maybe a specific example will clear up the water. I would like to calculate how much torque I must apply to SS$304(18-8)$ screw M$3-0\mathrm{.}5$ turned into AL $6061-$T$6$ to get clamping force $2\mathrm{.}89$ Lb$.$ I would like to be able to expend the formula to other screw sizes.