Bolt Tightening: Same Position w/ Same Torque?

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    Bolt Torque
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When a bolt is torqued and marked, refastening it to the same torque may not align the marks due to potential deformation of softer materials like gaskets. Retorquing head bolts is generally unnecessary with modern gaskets, as older composite gaskets required it due to settling. The discussion highlights that dirt in threads and wear can affect alignment, and bolts may stretch over time. The distinction between bolts and screws is debated, with definitions varying based on usage and threading. Overall, careful installation and consideration of material properties are crucial for maintaining torque alignment.
  • #31
Categorisation is a dodgy business. I have a DC motor with an armature which is threaded at one end, to keep the whole thing together with a nut. An 'armabolt' perhaps.
 

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