Operating Manual

Appendix: Tabular Data
Page 34 Guide to Ultrasonic Inspection of Fasteners
6-THREAD SERIES, 6UN
Sizes
Primary in.
Secondary
in.
Basic Major Diameter
in.
Tensile Stress Area
Sq. in.
1 3/8 1.3750 1.1555
1 7/16 1.4375 1.2777
1 1/2 1.5000 1.405
1 9/16 1.5625 1.54
1 5/8 1.6250 1.68
1 11/16 1.6875 1.83
1 3/4 1.7500 1.98
1 13/16 1.8125 2.14
1 7/8 1.8750 2.30
1 15/16 1.9375 2.47
2 2.0000 2.65
2 1/8 2.1250 3.03
2 1/4 2.2500 3.42
2 3/8 2.3750 3.85
2 1/2 2.5000 4.29
2 5/8 2.6250 4.76
2 3/4 2.7500 5.26
2 7/8 2.8750 5.78
3 3.0000 6.33
3 1/8 3.1250 6.89
3 1/4 3.2500 7.49
3 3/8 3.3750 8.11
3 1/2 3.5000 8.75
3 5/8 3.6250 9.42
3 3/4 3.7500 10.11
3 7/8 3.8750 10.83
4 4.0000 11.57
4 1/8 4.1250 12.33
4 1/4 4.2500 13.12
4 3/8 4.3750 13.94
4 1/2 4.5000 14.78
4 5/8 4.6250 15.6
4 3/4 4.7500 16.5
4 7/8 4.8750 17.5
5 5.0000 18.4
5 1/8 5.1250 19.3
5 1/4 5.2500 20.3
5 3/8 5.3750 21.3
5 1/2 5.5000 22.4
5 5/8 5.6250 23.4
5 3/4 5.7500 24.5
5 7/8 5.8750 25.6
6 6.0000 26.8
8-THREAD SERIES, 8UN
Sizes
Primary in.
Secondary
in.
Basic Major Diameter
in.
Tensile Stress Area
Sq. in.
1 1.0000 0.606
1 1/16 1.0625 0.695
1 1/8 1.1250 0.790
1 3/16 1.1875 0.892
1 1/4 1.2500 1.000
1 5/16 1.3125 1.114
1 3/8 1.3750 1.233
1 7/16 1.4375 1.360
1 1/2 1.5000 1.492
1 9/16 1.5625 1.63
1 5/8 1.6250 1.78
1 11/16 1.6875 1.93
1 3/4 1.7500 2.08
1 13/16 1.8125 2.25
1 7/8 1.8750 2.41
1 15/16 1.9375 2.59
2 2.0000 2.77
2 1/8 2.1250 3.15
2 1/4 2.2500 3.56
2 3/8 2.3750 3.99
2 1/2 2.5000 4.44
2 5/8 2.6250 4.92
2 3/4 2.7500 5.43
2 7/8 2.8750 5.95
3 3.0000 6.51
3 1/8 3.1250 7.08
3 1/4 3.2500 7.69
3 3/8 3.3750 8.31
3 1/2 3.5000 8.96
3 5/8 3.6250 9.64
3 3/4 3.7500 10.34
3 7/8 3.8750 11.06
4 4.0000 11.81
4 1/8 4.1250 12.59
4 1/4 4.2500 13.38
4 3/8 4.3750 14.21
4 1/2 4.5000 15.1
4 5/8 4.6250 15.9
4 3/4 4.7500 16.8
4 7/8 4.8750 17.7
5 5.0000 18.7
5 1/8 5.1250 19.7
5 1/4 5.2500 20.7
5 3/8 5.3750 21.7
5 1/2 5.5000 22.7
5 5/8 5.6250 23.8
5 3/4 5.7500 24.9
5 7/8 5.8750 26.0
6 6.0000 27.1