Mechanical Properties of Inch Fasteners 美标紧固件对照表(4)

Mechanical Properties of Inch Fasteners

all 1-in fine threads manufactured are 1-14 (UNS).

Tensile Stress Area = 0.7854 (D - 0.9743/n)2

D = nominal thread diametern = threads per inch

Thread Root Area = 0.7854(D - 1.3/n)2

D = nominal thread diametern = threads per inch

Int Thread Stripping Area per inch of Engagement = 3.1416 x Dsmin x n [(1/2n)+0.57735(Dsmin - Enmax)]The values listed are for 2B internal threads

n = threads per inch

Dsmin = minimum major diameter of external threadEnmax = maximum pitch diameter of internal thread

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