Operating Manual

Appendix: Tabular Data
Page 30 Guide to Ultrasonic Inspection of Fasteners
METRIC STANDARD THREAD
Sizes
mm
Pitch
mm
Tensile Stress Area
Sq. mm
M 4 0.7 8.78
M 5 0.8 14.2
M 6 1.0 20.1
M 7 1.0 28.9
M 8 1.25 36.6
M 10 1.5 58.0
M 12 1.75 84.3
M 14 2.0 115
M 16 2.0 157
M 18 2.5 193
M 20 2.5 245
M 22 2.5 303
M 24 3.0 353
M 27 3.0 459
M 30 3.5 561
M 33 3.5 694
M 36 4.0 817
M 39 4.0 976
METRIC FINE THREAD
Sizes
mm
Pitch
mm
Tensile Stress Area
Sq. mm
M 8 1.0 39.2
M 9 1.0 51
M 10 1.0 64.5
M 10 1.25 61.2
M 12 1.25 92.1
M 12 1.5 88.1
M 14 1.5 125
M 16 1.5 167
M 18 1.5 216
M 18 2.0 204
M 20 1.5 272
M 22 1.5 333
M 24 1.5 401
M 24 2.0 384
M 27 1.5 514
M 27 2.0 496
M 30 1.5 642
M 30 2.0 621
M 33 1.5 784
M 33 2.0 761
M 36 1.5 940
M 36 3.0 865
M 39 1.5 1110
M 39 3.0 1028