TM 9-2320-366-34-1
Table E-3. Dry Torque Limits for Metric Screws and Free Spinning Nuts
Material Grade Markings
Metric Grade 4.8
Metric Grade 8.8
Metric Grade 10.9
Metric Grade 12.9
Diameter
Thread
Pitch
Torque
mm
lb-ft
N·m
lb-ft
N·m
lb-ft
N·m
lb-ft
N·m
6
1
3
4-5
5-7
7-9
7-9
10-13
8-11
11-15
8
1.25
7-9
9-11
13-17
17-23
17-23
23-31
21-27
27-37
8
1
7-9
9-13
14-18
18-24
19-25
25-33
21-29
29-39
10
1.5
13-17
17-23
25-33
33-45
34-46
46-62
40-54
54-72
10
1.25
14-18
18-24
26-34
35-47
36-48
49-65
42-56
57-77
10
0.75
15-19
21-27
29-39
39-53
40-54
54-72
47-63
63-85
12
1.75
22-30
30-40
43-57
58-78
60-80
81-107
69-93
94-126
12
1.5
23-31
32-42
46-60
61-81
63-83
85-113
73-97
99-131
12
1.25
24-32
33-45
47-63
65-85
65-87
88-118
76-102
104-138
12
1
26-34
34-46
49-65
67-89
68-90
93-123
80-106
108-144
14
2
36-48
48-74
69-91
93-125
95-127
129-173
112-148
151-201
14
1.5
39-51
52-70
75-99
99-135
103-137
140-186
120-160
163-217
15
1
51-69
69-93
100-132
135-179
137-183
187-249
160-214
218-290
16
2
55-73
75-99
107-143
145-193
148-198
201-267
173-231
235-313
16
1.5
59-79
80-106
114-152
155-207
158-210
214-286
184-246
250-334
18
1.5
166-222
225-301
230-306
311-415
268-358
364-486
20
2.5
209-279
283-377
289-385
392-522
338-450
458-610
20
1.5
232-308
315-419
321-427
435-579
375-499
508-678
20
1
244-324
330-440
337-449
457-609
394-524
534-712
22
2.5
285-379
387-515
394-524
534-712
461-613
624-832
22
1.5
313-417
424-566
432-576
586-782
664-884
900-1200
24
3
361-481
489-653
499-665
677-903
584-778
791-1055
24
2
394-524
534-712
545-725
738-984
725-965
982-1310
25
1.5
467-621
633-843
645-859
875-1167
754-1004
1023-1363
E-5
