What torque settings for accessory screws.

As a newish teacher I am trying to get students to fix things with the correct amount of torque.

Tightening brass screws like they are wheel nuts does not give materials much of a lifespan.

So I bought a couple of torque screwdrivers, so they can quickly get a feel for how tight things should be.

However now I look at data sheets I can't seem to find Torque info for anything smaller than a a miniature circuit breaker.

The data sheets now often include other everyday information like Altitude.

Does anyone have some guidance for smaller brass screw torques, or know of a manufacturer that publishes such data?

Parents
  • I should have been in bed last night, but I had another cup of tea and watched a bit of Shed and Buried on the telly, they were doing up an old three wheeler with a motorcycle engine in it.

    There was a comment when the carburettor was being reattached that if you tighten one of the two bolts fully rather than taking them down together gradually as a pair the carburettor and it’s mounting flange will end up twisted and will leak air.

    Technique is important.

Reply
  • I should have been in bed last night, but I had another cup of tea and watched a bit of Shed and Buried on the telly, they were doing up an old three wheeler with a motorcycle engine in it.

    There was a comment when the carburettor was being reattached that if you tighten one of the two bolts fully rather than taking them down together gradually as a pair the carburettor and it’s mounting flange will end up twisted and will leak air.

    Technique is important.

Children
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