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 TM 55-1905-220-14-5
3-58. ELECTRIC POWER GENERATION AND DISTRIBUTION (Cont).
STANDARD BOLT AND NUT TORQUE SPECIFICATIONS
Thread
Minimum
Maximum
Size
(lb ft)
(Nm)
(lb ft)
(nm)
1/4-20 ..........................................................
7
9.4920
9
12.2040
1/4-28 .........................................................
8
10.8480
10
13.5600
5/16-18 ........................................................ 13
17.6280
17
23.0520
5/16-24 ........................................................ 15
20.3400
19
25.7640
3/8-16 ......................................................... 30
40.6800
35
47.4600
3/8-24 .......................................................... 35
47.4600
39
52.8840
7/16-14 ....................................................... 46
62.3760
50
67.8000
7/16-20 ....................................................... 57
77.2920
61
82.7160
1/2-13 .......................................................... 71
96.2760
75
101.7000
1/2-20 .......................................................... 83
112.5480
93
126.1080
9/16-12 ........................................................ 90
122.0400
100
135.6000
9/16-18 ........................................................ 107
145.0920
117
158.6520
5/8-11 .......................................................... 137
185.7720
147
199.3320
5/8-18 .......................................................... 168
227.8080
178
241.3680
3/4-10 .......................................................... 240
325.4400
250
339.0000
3/4-16 .......................................................... 290
393.2400
300
406.8000
7/8-9 .......................................................... 410
555.9600
420
569.5200
7/8-14 .......................................................... 475
644.1000
485
657.6600
1-8
.......................................................... 580
786.4800
590
800.0400
1-14 .......................................................... 685
928.8600
695
942.4200
3-1032
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