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Page Title:
Table F-3. Dry Torque Limits for Metric Screws and Free Spinning Nuts |
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 TM 9-2320-366-20-1
Material Grade Markings
Metric Grade 4.8
Metric Grade 8.8
Metric Grade 10.9
Metric Grade 12.9
Diameter
Thread
Pitch
mm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
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
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