How Do You Calculate the Maximum Bolt Angle Through a Flanged Hole?

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SUMMARY

The discussion focuses on calculating the maximum bolt angle through a flanged hole, given specific parameters: flange thickness, bolt hole diameter, and bolt diameter. The user seeks a formula to determine this angle, emphasizing the importance of visual representation for clarity. Trigonometry is identified as a key tool in solving this problem, and the impact of counter-sinks on the maximum angle is also noted as a significant factor.

PREREQUISITES
  • Understanding of basic trigonometry principles
  • Familiarity with geometric concepts related to angles and holes
  • Knowledge of flange design and bolt specifications
  • Experience with visual representation techniques for problem-solving
NEXT STEPS
  • Research trigonometric functions relevant to angle calculations
  • Explore flange design guidelines and specifications
  • Learn about the effects of counter-sinks on bolt alignment
  • Study geometric visualization techniques for mechanical design
USEFUL FOR

Mechanical engineers, designers, and anyone involved in flange and bolt assembly calculations will benefit from this discussion.

MJCfromCT
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I have a flange of known thickness, with a bolt hole of a known diameter through it. I am trying to calculate the maximum angle off from the centerline through the bolt hole that the bolt will be able to pass ( I know the max diameter of the bolt as well ). Is there a formula for this, given that I know the flange thickness, bolt hole diameter, and bolt diameter? Thanks in advance.
 
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I would just draw a picture.
You have a striaght hole of known width and depth, a straight bolt of known width.
The angle should come out easily - probably more easily than describing the question.
 
Thanks. Yeah, as soon after I posted this, I drew it out and it became a lot clearer :)
 
Yup, trig = friend :cool: Counter-sinks on the hole can also have a large effect on max angle, so you might look into that.
 

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