Actually 69 I've got agree with our friend from APA. I don't use my torque wrench unless I'm working on an engine.For all else I use the feel in my palms.After 40yrs of wrenching I trust my hands.Aluminum? Blue Loctite and hand snug.
Thats a great reference site. The main thing that determines torque value is strength of fastener and material. If you are tightening into aluminum and it gets tighter tighter then looser, you just stripped the hole. That is one of the feels that gets aquired over the years. 16 ft/lbs is not very much, I agree, blue lock-tite and snug.