APPENDIX E TORQUE LIMITS

E-O

TM 3-4230-209-30&P

APPENDIX E

TORQUE LIMITS

E-1. INTRODUCTION.

c. The torque table values are given in inch-pounds. If a torque wrench is

calibrated in foot-pounds, divide the listed number by 12 to obtain the desired

a. This appendix includes a standard torque table of the most commonly

torque.

torqued screws, bolts, and nuts.

b. Use these torque values when torque values are not specified.

STANDARD TORQUE TABLE (INCH-POUNDS)

Dry Torque Values in Inch-Pounds for Tightening Nuts'

On standard bolts. studs, and screws having a tensile

On bolts, studs, and screws hav-

On high-strength bolts, studs,

ing a tensile strength of 140,000

strength of 125,000 to 140,000 psi

and screws having a tensile

strength of 160,000 psi and

to 160,000 psi

over

Bolt, Stud,

or Screw

Size

Any nut, except shear type

Shear type nuts (AN320,

Tension type nuts and

AN364, or equivalent)

threaded machine

parts (AN310,

AN365. or equivalent)

14-17

15-18

12-15

8-32

7-9

14-17

15-18

12-15

8-36

7-9

20-25

23-30

25-35

10-24

12-15

40-50

45-49

50-68

1/4-20

25-30

70-90

50-70

60-80

1/4-28

30-40

85-117

80-90

90-144

5/16-18

48-55

100-140

120-172

140-203

5/16-24

60-85

160-185

173-217

185-248

3/8-16

95-110

160-190

175-271

190-351

3/8-24

95-110

235-255

255-428

245-342

7/16-14

140-155

450-500

500-756

475-628

7/16-20

270-300

480-792

400-480

440-636

1/2-13

240-290

480-690

690-990

585-840

1/2-20

290-410

700-990

500-700

600-845

9/16-12

300-420

1,000-1,440

800-1,000

900-1,220

9/16-18

480-600