ASTM A490 Bolt Torque Chart

The ASTM A490 is a specification for the bolts set by the ASTM International, a voluntary standards development organizations that sets technical standards for materials. ASTM A490 covers heavy hex structural bolts from 1/2 inch diameter through 1-1/2 inches diameter and are made of alloy steel. Find here the below ASTM A490 Bolt Torque Chart which provides the details of tension, torque and TPI for its specification bolts against their corresponding sizes.

Bolt Size TPI Tension (lbs) Tightening Torque Range (ft lbs) (Min - Max)
Min Max Lubricated Plain
12 13 15,000 18,000 63 - 75 125 - 150
58 11 24,000 29,000 125 - 151 250 - 302
34 10 35,000 42,000 219 - 263 438 - 525
78 9 49,000 59,000 357 - 430 715 - 860
1 8 64,000 77,000 533 - 642 1,067 - 1,283
118 7 80,000 96,000 750 - 900 1,500 - 1,800
114 7 102,000 122,000 1,063 - 1,271 2,125 - 2,542
138 6 121,000 145,000 1,386 - 1,661 2,773 - 3,323
112 6 148,000 178,000 1,850 - 2,225 3,700 - 4,450

ASTM A490 Bolt Torque Chart displays the range of torque against their corresponding bolt sizes.


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