Internal Thread Shear Area Calculator per. Fed-STD-H28

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Engineering Metals and Materials |
Strength of Materials

For equations and illustrative graphics see:
Shear Area Internal & External Thread Formula per. Fed-STD-H28

All units shall be consistant and given in inches.

Internal Thread Shear Area Calculator
Max. Pitch Dia Internal Thread (En max) =
Min. Major Dia. External Thread (Ds min) =
Fastener Thread Engagement (Le) =
Threads per Inch (n) =
Thread Shear Area (As) =

Automatic recalculation