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 TM 9-2330-394-13&P
TORQUE LIMITS - Continued
0180 00
Table 4. Dry Torque Limits for Metric Prevailing Torque Nuts.
Material Grade Markings
Metric Grade 4.8
Metric Grade 8.8
Metric Grade 10.9
Metric Grade 12.9
Diameter
Thread
Torque
Pitch
mm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
6
1
5-6
7-8
7-9
10-12
10-12
14-17
11-14
15-19
8
1.25
12-14
16-18
18-22
24-30
24-30
32-40
27-33
36-46
8
1
12-14
16-20
19-23
25-31
25-31
34-42
28-36
38-48
10
1.5
21-25
28-34
33-41
44-56
44-56
60-76
50-64
68-86
10
1.25
21-25
29-35
34-42
46-58
46-58
63-79
53-67
71-91
10
0.75
23-27
31-37
37-47
49-63
50-64
68-86
57-73
77-99
12
1.75
33-41
46-56
55-69
74-94
75-95
102-128
85-109
115-147
12
1.5
35-43
47-57
56-72
77-97
78-98
106-134
89-113
120-152
12
1.25
36-44
48-60
58-74
79-101
81-103
109-139
91-117
125-159
12
1
37-45
50-62
61-77
82-104
84-106
114-144
95-121
129-165
14
2
53-65
72-88
87-109
117-149
118-150
160-204
134-172
182-232
14
1.5
57-69
76-94
92-116
125-159
126-160
171-217
143-183
194-248
16
2
79-97
107-131
130-166
177-225
178-228
243-309
204-262
277-355
16
1.5
82-102
112-138
138-176
187-239
189-241
256-328
215-277
292-376
18
1.5
197-253
267-343
271-347
367-471
309-399
420-542
20
2.5
248-318
337-431
342-438
464-594
391-503
530-682
20
1.5
271-349
369-473
374-480
507-651
428-552
580-750
20
1
283-365
384-494
390-502
529-681
447-577
606-784
22
2.5
335-429
455-583
460-592
624-802
526-680
714-922
22
1.5
363-467
492-634
499-643
676-872
730-950
990-1290
24
3
420-540
569-733
577-743
783-1009
662-856
897-1161
24
2
453-583
614-792
622-804
844-1090
803-
1088-
1043
1416
0180 00-7
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