Bolt Tensioning vs. Torquing, Compared

[UncleKennysPlace]

We used bolt "stretch" measurements when installing connecting rods back in the day.

[Jimmyjimjimjim]

I just crank on the nut and all good. Never had a nut or bolt come loose when using the proper nuts and washers. Overthinking it.

[arnabbhattacharjee]

Please upload more videos like this one

[kamronduplass]

what about the other variables in regards to the +/- factor? Just curious where the percentages are coming from. does thread type play into it as well?

[peetventerful]

Princuple Stress in the torqued bolt is also higher for a given pre load. Torque shear plus bolt tension stress as a pose to tensile only when employing bolt pre tension.

Many thanks for the video

[allnamesaretakenb]

As a structural engineer, when we need proper pre-tension in a bolted connection, where mistakes would be catastrophic, we use tensioning tools, otherwise we torque it.

[jimf]

For most general engineering purposes, canvassing for the use of tensioning systems is a waste of time. More advance is achieved by educating craft/technician level users to make any useful effort to tighten threaded fasteners (usually a torque wrench, please) and by educating engineers to design viable bolted joints. We have only 17 years left until the 200th anniversary of Joseph Whitworth's standardised threaded fastener and I think 200 years is more than enough time to have spent learning how to use it. 🤔

[sopalen]

No bolt in sight ;), and all you use is tensioning.

[greentriumph]

Plus minus 30+ is very pessimistic. A well lubricated bolt with good threads can outperform this.

[peetventerful]

Please also add the turn of the nut method in future video