Acme General Purpose Screw Threads Stress and Shear Area

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Acme General Purpose Screw Threads Stress and Shear Area equations and calculators per. ASME/ANSI B1.5

For computing the tensile strength of the thread section, the minimum stress area based on the mean of the minimum pitch diameter d2 and the minimum minor diameter d1 of the external thread is used:

Stress Area of General Purpose Acme Threads:

ACME Thread Stress Area

where d2 min. and d1 max. can be obtained from -> ACME General Purpose Thread Designer Calculator

Where:

d1 = Minimum minor diameter of the external thread (in, mm)

d2 = Minimum pitch diameter min. External thread (in, mm)

d1 and d2 can be obtained from -> ACME General Purpose Thread Designer Calculator

Shear Area of General Purpose Acme Threads: For computing the shear area per inch length of engagement of the external thread, the maximum minor diameter of the internal thread D1, and the minimum pitch diameter of the external thread D2 ,

ACME Thread Shear Area

Where:

D1 = Maximum Minor diameter of the internal thread (in, mm)

D2 = Minimum Pitch diameter of the external thread (in, mm)

D1 and D2 can be obtained from -> ACME General Purpose Thread Designer Calculator

n = Number of thread per unit (threads/inch, threads/mm)

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