[QUOTE 1769282, member: 45"]It is, but the OP is just talking about his seat post.
I've only ever needed to use a proper torque wrench on the BB and cassette.[/quote]
Different makes of seatpost have different settings recommended. I find I use mine mostly for stem and steerer - again different settings from different manufacturers - mine are Prolite and Deda and the recommended torque is higher than 5 Nm. You are clever if you can tighten the bolts on a stem faceplate evenly without a torque wrench. On the other hand I find tightening a cassette lockring quite straightforward without a torque wrench.