Shear Area Internal and External Thread  Formula and Calculation

Mechanics / Strength of Materials Menu
Fastener Thread Analysis Menu

Shear Area For External Thread ( Screw or Fastener )

Where:

Kn max =
Maximum minor diameter of internal thread.
Es min =
Minimum pitch diameter of external thread.
Le =
Fastener thread engagement
n =
Number of threads per inch

 


Shear Area For Internal Thread

Where:

En max =
Maximum pitch diameter of internal thread.
Ds min =
Minimum major diameter of external thread.
Le =
Fastener thread engagement
n =
Number of threads per inch

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