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

AI Thread Summary
To calculate the maximum bolt angle through a flanged hole, one can use trigonometric principles based on the known flange thickness, bolt hole diameter, and bolt diameter. Drawing a diagram can clarify the relationship between these dimensions and simplify the calculation. The presence of counter-sinks in the hole can significantly impact the maximum angle achievable. Overall, visualizing the problem aids in understanding the geometric constraints involved. Trigonometry is essential for deriving the maximum angle effectively.
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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