TORQUE VALUES FOR AIRCRAFT BOLTS, STUDS, OR SCREWS

125,000 - 145,000 PSI TENSILE STRENGTH


Nominal
Thread Size		 Torque Values
Shear Type Nuts
AN316, AN320, AN364
or Equivalent		 Tension Type Nuts
AN310, AN365, NAS679
or Equivalent
 
8 - 32
10 - 32
1/4 - 28
5/16 - 24
3/8 - 24
7/16 - 20
1/2 - 20
9/16 - 18
5/8 - 18		             7 - 9 in. lbs.
12 - 15
30 - 40
60 - 85
100 - 110
270 - 300
300 - 400
500 - 600
700 - 750		             12 - 15 in. lbs.
20 - 25
50 - 70
100 - 140
160 - 190
450 - 500
500 - 650
 800 - 1000
1100 - 1300
3/4 - 16
7/8 - 14
1 - 14
1 - 12
1 - 1/8 - 12
1 - 1/4 - 12		             108 - 125 ft. lbs.
125 - 150
183 - 250
260 - 276
250 - 350
450 - 550		             191 - 208 ft. lbs.
208 - 250
308 - 458
360 - 460
416 - 666
750 - 916

160,000 PSI TENSILE STRENGTH AND OVER

Nominal
Thread Size		 Torque Values
High Strength Tension Nut
 
10 - 32
1/4 - 28
5/16 - 24
3/8 - 24
7/16 - 20
1/2 - 20
9/16 - 18
5/8 - 18		             38 - 46 in. lbs.
70 - 90
160 - 200
270 - 350
550 - 675
750 - 950
1150 - 1400
1700 - 2100
3/4 - 16
7/8 - 14
1 - 14
1 - 12
1 - 1/8 - 12
1 - 1/4 - 12		             250 - 350 ft. lbs.
400 - 485
610 - 750
590 - 725
 850 - 1160
1200 - 1500