TB 43-0218
Section V. - Torque Limits (Cont)
TABLE 5-1. TORQUE LIMITS FOR DRY FASTENERS
CAPSCREW HEAD MARKINGS
MANUFACTURER'S
MARKS
MAY VARY. THESE ARE ALL
SAE GRADE 5 (3-line)
SIZE
SAE GRADE
SAE GRADE
SAE GRADE
SAE GRADE
NO.2
NO.5
NO. 6 OR 7
NO.8
Dia.
Threads
Pound
Newton
Pound
Newton
Pound
Newton
Pound
Newton
Inches
Per Inch
Millimeters
Feet
Meters
Feet
Meters
Feet
Meters
Feet
Meters
1/4
20
6.35
5
7
8
11
10
14
12
16
1/4
28
6.35
6
9
10
14
12
16
14
19
5/16
18
7.94
11
15
17
23
21
28
25
34
5/16
24
7.94
12
16
19
26
24
33
25
34
3/8
16
9.63
20
27
30
41
40
54
45
61
3/8
24
9.53
23
31
35
47
45
61
50
68
7/16
14
11.11
30
41
50
68
60
81
70
95
7/16
20
35
47
55
75
70
95
80
108
1/2
13
12.70
50
68
75
102
95
129
110
149
1/2
20
55
75
90
122
100
136
120
163
9/16
12
14.29
65
88
110
149
135
183
150
203
9/16
18
75
102
120
163
150
203
170
231
5/8
11
15.88
90
122
150
203
190
258
220
298
5/8
18
100
136
180
244
210
285
240
325
3/4
10
19.05
160
217
260
353
320
434
380
515
3/4
16
180
244
300
407
360
488
420
597
7/8
9
22.23
140
190
400
542
520
705
600
814
7/8
14
155
210
440
597
580
786
660
895
1
8
25.40
220
298
580
786
800
1085
900
1220
1
12
240
325
640
868
860
1166
1000
1356
1-1/8
7
25.58
300
407
800
1085
1120
1519
1280
1736
1-1/8
12
340
461
880
1193
1260
1709
14401
953
1-1/4
7
31.75
420
570
1120
1519
1580
2142
1820
2468
1-1/4
12
460
624
1240
1681
1760
2387
2000
2712
1-3/8
6
34.93
560
759
1460
1980
2080
2820
2380
3227
1-3/8
12
640
868
1680
2278
2380
3227
2720
3688
1-1/2
6
38.10
740
1003
1940
2631
2780
3700
3160
4285
1-1/2
12
840
1139
2200
2983
3100
4204
3560
4827
9
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