TM.55-2840-251-23
Table E-2. Standard Torque Values (Continued)
STANDARD STEEL SCREWS, BOLTS, AND NUTS (POUND-INCHES)*
Thread Size
Slotted-Head Screws
Hexagon-Head Bolts and Nuts
5/16-24
40 to 45
120 to 165
(0.46 to 0.52kg/m)
(1.4 to 1.9kg/m)
3/8-24
55 to 60
250 to 325
(0.63 to 0.69kg/m)
(2.9 to 3.7kg/m)
7/16-20
80 to 90
400 to 475
(0.9 to 1.0kg/m)
(4.6 to 5.5kg/m)
1/2-20 or -13
100 to 110
500 to 700
(1.2 to 1.3kg/m)
(5.8 to 8.1kg/m)
9/16-18
750 to 1000
(8.6 to 11.5kg/m)
5/8-18
1000 to 1400
(11.5 to 16.lkg/m)
*Metric equivalent appears in parentheses( ).
E-3