Minimum Tensile Load On Coarse Thread

Many customers in the procurement of fasteners, worry that manufacturers produced coarse screw do not meet the requirements of their tensile load requirements. Shenzhen Shi shi tong manufacturers provide a detailed table of the minimum tensile load of coarse thread screws for your reference:

Minimum Tensile Load On Coarse Thread

①As=π/4(d2+d3/2)²

d2 – the basic size of the thread diameter (mm);

d3 – the basic dimension of the thread diameter (d1) minus the 1/6 value of the original triangular twist (H) of the thread, ie: d3 = dl-H / 6 mm

H——the original triangular height of the thread (H=0.866025P) (mm);

P——pitch（mm);

π=3.1416.

②Of steel bolts were replaced by 70000N, 95500N and 130000N.

The above is the minimum tensile load of the coarse thread screw. If you want to know more about fasteners, please feel free to contact us at annie.li@szsst88.com