TM 9-2320-366-34-2
Table E-1. Dry Torque Limits for SAE and ANSI Screws and Free Spinning Nuts (Cont)
Manufacturer’s marks
may vary. These are all
SAE Grade 5
Material Grade Markings
SAE Grade 2
SAE Grade 5
SAE Grade 8
Diameter
Threads
per inch
Torque
inch
lb-ft
N·m
lb-ft
N·m
lb-ft
N·m
11/16
24
99-133
135-181
153-207
209-279
217-291
296-394
3/4
10
110-148
150-200
171-229
232-310
240-324
328-438
3/4
16
123-165
168-224
190-256
259-345
269-361
366-488
3/4
20
127-171
174-232
197-265
268-358
278-374
379-505
13/16
20
252-340
345-459
357-481
487-649
7/8
9
275-369
374-498
387-521
528-704
7/8
14
303-407
413-551
427-575
583-777
7/8
20
319-429
435-579
450-606
614-818
15/16
20
395-531
538-718
558-750
760-1014
1
8
411-553
560-748
581-781
792-1056
1
12
450-606
614-818
636-856
867-1155
1
20
483-649
658-878
681-917
929-1239
1-1/16
18
576-776
782-1044
813-1095
1109-1479
1-1/8
7
507-683
693-923
824-1108
1123-1497
1-1/8
12
570-766
776-1034
923-1241
1258-1678
1-1/8
18
600-806
817-1089
971-1307
1324-1766
1-3/16
18
709-953
966-1288
1149-1545
1566-2088
1-1/4
7
716-964
976-1302
1161-1563
1584-2112
1-1/4
12
793-1067
1081-1441
1286-1730
1754-2338
1-1/4
18
831-1117
1132-1510
1346-1812
1835-2447
1-5/16
18
965-1299
1316-1754
1565-2105
2134-2846
1-3/8
6
939-1263
1281-1707
1523-2049
2076-2768
E-3
