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Imperial Yield Loads


Thread Size Major Diameter Stress Area AS Tensile Load in kN as xRm*
304 UNC2) & 316 UNC2)
5-40 3.175 5.14 2.30
6-32 3.505 5.86 2.63
8-32 4.166 9.04 4.05
10-24 4.826 11.31 5.074
1/4-20 6.350 20.50 9.19
5/16-18 7.938 33.80 15.15
3/8-16 9.525 50.00 22.41
7/16-14 11.112 68.60 30.75
1/2-13 12.700 91.50 41.02
9/16-12 14.288 117.00 52.45
5/8-11 15.875 146.00 65.45
3/4-10 19.050 216.00 67.03
7/8-9 22.225 298.00 92.48
1-8 25.400 391.00 121.34
1-1/8-7 28.575 492.00 152.69

Note: This chart is provided as cross reference. For accurate values the actual specifications should be reviewed.

1) Strengths of A2 and A4 are identical

2) Cold worked (Ref. ASTM F 593)

3) Strain Hardened (Ref. ISO 3506)

4) Ref. ISO 3506


*AS = Stress Area

Rm = Tensile Strength

ReL = Yield Strength

Conversion metric/imperial: 1kN = 224.8lb


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