Secure Pin Generator

Active Pin Length

The pin active length l f is a length reduced by chamfering and filleting. The active length usually carries loading.

Formulas

Shear stress check

Contact pressure check

Interpretations of symbols in metric units:

τ

shear stress [MPa]

τ A

allowable shear stress [MPa]

d

pin diameter [mm]

p 1

pressure in the top board [MPa]

p 2

pressure in the bottom board [MPa]

p 1A

allowable pressure in the top board [MPa]

p 2A

allowable pressure in the bottom board [MPa]

s 1

thickness of the top board [mm]

s 2

thickness of the bottom board [mm]

Interpretations of symbols in English units:

τ

shear stress [psi]

τ A

allowable shear stress [psi]

d

pin diameter [in]

p 1

pressure in the top board [psi]

p 2

pressure in the bottom board [psi]

p 1A

allowable pressure in the top board [psi]

p 2A

allowable pressure in the bottom board [psi]

s 1

thickness of the top board [in]

s 2

thickness of the bottom board [in]