Torque & Angle Explained with a Stress / Strian diagram

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Uploaded by on Oct 17, 2011

This video will help you understand the difference between torque and angle. Angle is a calculated measurement based on many factors. It is important to understand both in order to avoid stripping a thread or using a spent fastener.

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Uploader Comments (CoolCarsHotGuitars)

  • awsome explanation MR.PETE....thanks for that info and putting on video for the world to understand ....great graph and calculations ......!!!

  • The videos I make are driven by phone calls I receive. When I made the 3.4 head gasket video I had hundreds of calls & had to explain angle and torque-to-yield fasteners to most everyone. I analyze torque and angle data every day in an engine plant and it is immensely important to understand what it means. The data can tell me if there is a cross-threaded fastener, chips in a hole, or a bad part. It is an intricate science, I'm not an expert, but I tried to make it easy to understand. Thanks!

  • Great vid, CoolCarsHotGuitars. What's your opinion of electronic torque wrenches "with angle"? IOW, digital readout torque wrenches that can apply angle specs as well as torque. Are these tools "smart" enough to know the difference between deflection of the torque wrench handle and the turning of the actual fastener itself--through an angle, after the preliminary torque value has been met? (Deflection of torque wrench handle isn't a problem with a mechanical torque angle gauge.)

  • Any electronic tool is fine as long as it is calibrated at the recommended interval. I use some electronic torque wrenches and they are pretty neat..and yes they can accurately measure angle. A good one is very expensive but the manual method is just as good.

  • Nice video!

    But is there som kind of diagram to get the right angle?

  • Not that I know of. There are so many different material / thread / variable combinations it would be a huge chart. That is why it is a calculation for each application.

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