TM 5-3895-379-23-2
0284
GENERAL TORQUE VALUES - Continued
Unified Inch Bolt and Cap Screw Torque Values
The top row of Figure 9 is SAE grade and head markings, the bottom is SAE grade and nut markings.
M1324SWR
Figure 9.
Unified Inch Screw Markings.
Table 5. Unified Inch Screw Torque Values.
Grade 2 a (No Mark)
Grade 1 (No Mark)
Grade 5, 5.1, or 5.2
Grade 8 or 8.2
Lubricate
Lubricate
Lubricate
Lubricate
Dry c
Dry c
Dry c
Dry c
db
db
db
db
Thread
lb-ft
lb-ft
lb-ft
lb-ft
Size
lb-ft
lb-ft
lb-ft
lb-ft
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
1/4
2.8 (3.8)
3.5 (4.7)
4.4 (6)
5.5 (7.5)
7 (9.5)
9 (12)
10 (13.5)
12.5 (17)
5/16
5.7 (7.7)
7.2 (9.8)
9 (12)
11.5
14.5
18.5 (25)
20.5 (28)
26 (35)
(15.5)
(19.5)
3/8
10 (13.5)
13 (17.5)
16 (22)
20 (27.5)
26 (35)
32.5 (44)
36 (49)
46 (63)
7/16
16 (22)
20.5 (28)
26 (35)
32.5 (44)
41 (56)
52 (70)
59 (80)
74 (100)
1/2
25 (34)
31 (42)
39 (53)
49 (67)
63 (85)
80 (110)
88 (120)
115 (155)
9/16
35.5 (48)
45 (60)
56 (76)
70 (95)
92 (125)
115 (155)
130 (175)
165 (220)
5/8
49 (67)
63 (85)
77 (105)
100 (135)
125 (170)
160 (215)
175 (240)
225 (305)
3/4
88 (120)
110 (150)
140 (190)
175 (240)
220 (300)
280 (380)
315 (425)
400 (540)
7/8
140 (190)
175 (240)
140 (190)
175 (240)
360 (490)
455 (615)
510 (690)
640 (870)
1
210 (285)
265 (360)
210 (285)
265 (360)
540 (730)
680 (920)
760
960
(1030)
(1300)
03/15/2011Rel(1.8)root(torquewp)wpno(M00222)