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Example calculation

Calculation of critical height of nut or length of engagement

for metric ISO threads according to VDI 2230

Attention!
This calculation is only a simplified estimation, and does not replace a detailed design calculation.

Input data

  Type of the thread joint  
  Thread    
  Tolerance class  
  Minimum tensile strength of the bolt   MPa
  Maximum tensile strength of the bolt   MPa
  Minimum tensile strength of the nut thread   MPa
  Available height of nut
or length of engagement
  mm
  Allowable stress   MPa
 
   
 

Results

  Minimum required
height of nut or length of engagement
  mm
  Maximum allowable axial force   kN

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