ISO Metric Thread Minimum Ultimate Tensile Loads

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The table below show minimum ultimate tensile loads for bolts, nuts and studs with an ISO metric coarse and fine pitch thread in sizes M3 to M39.

According to EN ISO 898-1.

a Where no thread pitch is indicated in a thread designation, coarse pitch is specified.


b To calculate As,nom, see


c For fasteners with thread tolerance 6az in accordance with ISO 965-4 subject to hot dip galvanizing, reduced values in accordance
with ISO 10684:2004, Annex A, apply.


d For structural bolting 70 000 N (for M12), 95 500 N (for M14) and 130 000 N (for M16).

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