Specifications
TM 9-2330-384-14&P
APPENDIX H
TORQUE LIMITS
H-1. SCOPE.
This appendix lists standard torque values and provides general information for applying torque.
Special torque values and tightening sequences are indicated in the maintenance procedures for
applicable components.
H-2. GENERAL.
a.
Always use the torque values listed in Table H-l when the maintenance procedure does not
give a specific torque value.
b. Unless otherwise indicated, standard torque tolerance shall be ± 10%.
c. Torque values listed are based on clean, dry threads. Reduce torque by 10% when engine
oil is used as a lubricant.
d. If replacement fasteners are of higher grade than originally supplied, use torque
specifications for the original. This will prevent equipment damage due to over torquing.
Table H-1. Standard Torque Specifications.
Capscrew
Inches
Site
Thread
¼
20
¼
28
5/16
18
5/16
24
3/8
16
3/8
24
7/16
14
7/16
20
½
13
½ 20
9/16
12
SAE
Grade 2
lb.-In. N•m
SAE
Grade 5
SAE
Grade 8
lb.-In.
50-60
6-7
108-144
12-16
60-70
Grade 2
lb.-ft.
7-8
N•m
SAE
Grade 5
lb.-ft.
N•m
108-144
SAE
Grade, 8
lb.-ft.
9-12 12-16
13-17
18-23
20-25
9-12
12-16
15-20
20-27
20-25
15-20
20-27
20-30
27-41
35-45
18-24 24-33
25-35
34-48
35-45
20-30
27-41
40-50
54-68
50-70
25-35 34-48
45-55
61-75
60-80
35-50
48-68
55-70
75-95
80-100
40-55
50-65
54-75
68-88
65-85
88-115
80-100
108-136
90-110
100-140
TORQUE
N•m
12-16
N•m
27-34
27-34
48-61
48-61
68-94
81-109
108-136
122-149
136-190
H-1