TM 9-2350-238-34-2
APPENDIX D
TORQUE VALUES
D-1.
Follow torque values given throughout this manual. When no torque value is given, follow
the guide to prevent damaging parts.
D-2. The guide is based on using clean, dry threads.
TORQUE VALUE GUIDE
SCREW
DIAMETER
1/4–20 UNC
1/4–28 UNF
5/16–18 UNC
5/16–24 UNF
3/8–16 UNC
3/8–24 UNF
7/16–14 UNC
7/16–20 UNF
1/2–13 UNC
1/2–20 UNF
9/16–12 UNC
9/16–18 UNF
5/8–11 UNC
5/8–18 UNF
3/4–10 UNC
3/4–16 UNF
7/8–9 UNC
TORQUE
NO DASHES
(SAE GRADE 2)
3–5 ft-lb
(4–7 N-m)
4–6 ft-lb
(5–8 N-m)
7–11 ft-lb
(9–15 N-m)
7–11 ft-lb
(9–15 N-m)
14–18 ft-lb
(19–24 N-m)
15–19 ft-lb
(20–26 N-m)
23–28 ft-lb
(31 –38 N-m)
23–28 ft-lb
(31–38 N-m)
32–37 ft-lb
(43–50 N-m)
34–41 ft-lb
(46–56 N-m)
46–56 ft-lb
(62–76 N-m)
47–57 ft-lb
(64–77 N-m)
62–72 ft-lb
(84–98 N-m)
67–77 ft-lb
(91 –104 N-m)
106–116 ft-lb
(144–157 N-m)
115–125 ft-lb
(156–169 N-m)
165–175 ft-lb
(224–237 N-m)
TORQUE
3 DASHES
(SAE GRADE 5
6–8 ft-lb
(8–11 N-m)
8–10 ft-lb
(11–14 N-m)
13–17 ft-lb
(18–23 N-m)
14–19 ft-lb
(19–26 N-m)
26–31 ft-lb
(35–42 N-m)
30–35 ft-lb
(41–47 N-m)
44–49 ft-lb
(60–66 N-m)
44–54 ft-lb
(60–73 N-m)
65–75 ft-lb
(88–102 N-m)
73–83 ft-lb
(99–113 N-m)
100–110 ft-lb
(136–149 N-m)
107–117 ft-lb
(145–159 N-m)
140–150
ft-lb
(190–203 N-m)
153–163 ft-lb
(207–221 N-m)
260–270 ft-lb
(353–366 N-m)
268–278 ft-lb
(363–377 N-m)
385–395 ft-lb
(522–536 N-m)
TORQUE
6 DASHES
(SAE GRADE 8)
10–12 ft-lb
(14–16 N-m)
9–14 ft-lb
(12–19 N-m)
19–24 ft-lb
(26–33 N-m)
23–28 ft-lb
(31–38 N-m)
39–44 ft-lb
(53–60 N-m)
46–51 ft-lb
(62–69 N-m)
65–70 ft-lb
(88–95 N-m)
69–79 ft-lb
(94–107 N-m)
95–105
ft-lb
(129–142 N-m)
113–123 ft-lb
(153–167 N-m)
145–155 ft-lb
(197–210 N-m)
165–175 ft-lb
(224–237 N-m)
200–210 ft-lb
(271–285
N-m)
235–245 ft-lb
(319–332 N-m)
365–375 ft-lb
(495–508 N-m)
417–427 ft-lb
(565–579 N-m)
595–605 ft-lb
(807–820 N-m)
SOCKET
SIZE
7/16
7/16
1/2
1/2
9/16
9/16
5/8
5/8
3/4
3/4
13/16
13/16
15/16
15/16
1-1/4
1-1/4
1-5/16
D-1
