Torque for the screw tightening

[lukics]

Does anybody know what sort of torque to apply on the screws when tightening (Nm)?
Is there any recommendation for the inserts and the other assembly parts?
I am looking for buying something like that:

 

[claudermilk]

There really isn't a spec for torque on the screws. It's all pretty much just to snug--and that's lighter than you would think so go easy. As we say on a couple of the YouTube streams: "only a couple of ugga duggas" and "righty-tighty, and if righty-tighty becomes righty-loosey you've gone too far."

 

[NoGuru]

Like claudermilk said, just snug should be good. As far as inserts go, just go until they sit flush. If they go in to fast lower the temp on the Iron.
I set mine to 255 for inserts.

 

[120decibell]

If you want to get technical, a plain M3 bolt class 10.9 is supposed to be torqued to 1.9 Nm (1.4ft-lb).

https://www.fastenermart.com/files/metric_tighten_torques.pdf

 

[jluvs2ride]

Tight enough is to subjective, I have big hands and I have a tendency to tighten things a little too much.

I've looked up the torque specs for various size screws and bolts but I don't know if that applies screwing into threaded inserts.

 

[PGe-10]

If you want to get technical, a plain M3 bolt class 10.9 is supposed to be torqued to 1.9 Nm (1.4ft-lb).

https://www.fastenermart.com/files/metric_tighten_torques.pdf

I have wondered the same thing many times, so thanks for a real answer to his question. Appreciate facts and not everyone's opinion

 

[motor5622]

If your using stainless screws like I am that same M3 in a A4 class is only torqued to 8.9 in lb or 1nm

Stainless Steel Fasteners Pre-Load And Tightening Torques

Pre-Load and tightening torques for A1, A2 and A4 stainless steel fasteners.

international.optimas.com

 

[Akio]

A while ago I stumbled on this: https://www.sliceengineering.com/co...essories/products/nozzle-torque-wrench-1-5-nm

Apparently they use 1.5NM for their hotend nozzle combinations, but it might be different for nozzles or heater blocks made from different materials. It is the only 3d printing company though that I have seen to communicate an actual value.

 

[NoGuru]

A while ago I stumbled on this: https://www.sliceengineering.com/co...essories/products/nozzle-torque-wrench-1-5-nm

Apparently they use 1.5NM for their hotend nozzle combinations, but it might be different for nozzles or heater blocks made from different materials. It is the only 3d printing company though that I have seen to communicate an actual value.

Yeah there are lots of printable versions of nozzle changers that use about the same tq value.