Torque Charts
Table 1, Torque Values for U.S. Customary Thread Fasteners With Lubricated or Plated Threads
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Torque Values for U.S. Customary Thread Fasteners With Lubricatedor Plated Threads*† |
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Thread Diameter—Pitch |
Regular Hex |
Flanged |
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|
Grade 5 Bolt |
Grade 5 or B Nut |
Grade 8 or 8.2 Bolt |
Grade 8 or C Nut |
Grade 5 Bolt |
Grade B Nut |
Grade 8 or 8.2 Bolt |
Grade G Nut |
|
|
Torque: lbf·ft (N·m) |
Torque: lbf·ft (N·m) |
Torque: lbf·ft (N·m) |
Torque: lbf·ft (N·m) |
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 |
 |
 |
 |
 |
 |
 |
 |
|
|
1/4–20 |
7 (9) |
8 (11) |
6 (8) |
10 (14) |
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|
1/4–28 |
8 (11) |
9 (12) |
7 (9) |
12 (16) |
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|
5/16–18 |
15 (20) |
16 (22) |
13 (18) |
21 (28) |
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|
5/16–24 |
16 (22) |
17 (23) |
14 (19) |
23 (31) |
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|
3/8–16 |
26 (35) |
28 (38) |
23 (31) |
37 (50) |
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|
3/8–24 |
30 (41) |
32 (43) |
25 (34) |
42 (57) |
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|
7/16–14 |
42 (57) |
45 (61) |
35 (47) |
60 (81) |
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|
7/16–20 |
47 (64) |
50 (68) |
40 (54) |
66 (89) |
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|
1/2–13 |
64 (87) |
68 (92) |
55 (75) |
91 (123) |
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|
1/2–20 |
72 (98) |
77 (104) |
65 (88) |
102 (138) |
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|
9/16–12 |
92 (125) |
98 (133) |
80 (108) |
130 (176) |
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|
9/16–18 |
103 (140) |
110 (149) |
90 (122) |
146 (198) |
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|
5/8–11 |
128 (173) |
136 (184) |
110 (149) |
180 (244) |
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|
5/8–18 |
145 (197) |
154 (209) |
130 (176) |
204 (277) |
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|
3/4–10 |
226 (306) |
241 (327) |
200 (271) |
320 (434) |
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|
3/4–16 |
253 (343) |
269 (365) |
220 (298) |
357 (484) |
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|
7/8–9 |
365 (495) |
388 (526) |
320 (434) |
515 (698) |
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|
7/8–14 |
402 (545) |
427 (579) |
350 (475) |
568 (770) |
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|
1–8 |
— |
582 (789) |
— |
— |
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|
1–12 |
— |
637 (863) |
— |
— |
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|
1–14 |
— |
652 (884) |
— |
— |
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Table 1, Torque Values for U.S. Customary Thread Fasteners With Lubricated or Plated Threads
Table 2, Torque Values for U.S. Customary Thread Fasteners With Dry (Unlubricated) Plain (Unplated) Threads
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Torque Values for U.S. Customary Thread Fasteners With Dry (Unlubricated) 1 Plain (Unplated) Threads 2 |
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|---|---|---|---|---|---|---|
|
Thread Diameter—Pitch |
Regular Hex |
Flanged |
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|
Grade 5 Bolt |
Grade 5 or B Nut |
Grade 8 or 8.2 Bolt |
Grade 8 or C Nut |
Grade 8 or 8.2 Bolt |
Grade G Nut |
|
|
Torque: lbf·ft (N·m) |
Torque: lbf·ft (N·m) |
Torque: lbf·ft (N·m) |
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|
|
|
|
|
|
|
|
1/4–20 |
8 (11) |
10 (14) |
— |
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|
1/4–28 |
9 (12) |
12 (16) |
— |
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|
5/16–18 |
15 (20) |
22 (30) |
22 (30) |
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|
5/16–24 |
17 (23) |
25 (34) |
— |
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|
3/8–16 |
28 (38) |
40 (54) |
40 (54) |
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|
3/8–24 |
31 (42) |
45 (61) |
— |
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|
7/16–14 |
45 (61) |
65 (88) |
65 (88) |
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|
7/16–20 |
50 (68) |
70 (95) |
— |
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|
1/2–13 |
70 (95) |
95 (129) |
95 (129) |
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|
1/2–20 |
75 (102) |
110 (149) |
— |
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|
9/16–12 |
100 (136) |
140 (190) |
140 (190) |
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|
9/16–18 |
110 (149) |
155 (210) |
— |
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|
5/8–11 |
135 (183) |
190 (258) |
190 (258) |
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|
5/8–18 |
155 (210) |
215 (292) |
— |
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|
3/4–10 |
240 (325) |
340 (461) |
340 (461) |
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|
3/4–16 |
270 (366) |
380 (515) |
— |
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|
7/8–9 |
385 (522) |
540 (732) |
— |
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|
7/8–14 |
425 (576) |
600 (813) |
— |
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|
1–8 |
580 (786) |
820 (1112) |
— |
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|
1–12 |
635 (861) |
900 (1220) |
— |
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|
1–14 |
650 (881) |
915 (1241) |
— |
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- Threads may have residual oil, but will be dry to the touch.
- Male and female threads (bolt and nut) must both be unlubricated and unplated. If either is plated or lubricated, use Table . FCCC recommends that all plated and unplated fasteners be coated with oil before installation.
Table 2, Torque Values for U.S. Customary Thread Fasteners With Dry (Unlubricated) Plain (Unplated) Threads
Table 3, Torque Values for Metric Thread Fasteners With Lubricated or Plated Threads
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Torque Values for Metric Thread Fasteners With Lubricated 1 or Plated Threads 2 |
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|---|---|---|---|---|
|
Thread Diameter—Pitch |
Class 8.8 Bolt |
Class 8 Nut |
Class 10.9 Bolt |
Class 10 Nut |
|
Torque: lbf·ft (N·m) |
Torque: lbf·ft (N·m) |
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 |
 |
 |
 |
|
|
M6 |
5 (7) |
7 (9) |
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|
M8 |
12 (16) |
17 (23) |
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|
M8 x 1 |
13 (18) |
18 (24) |
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|
M10 |
24 (33) |
34 (46) |
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|
M10 x 1.25 |
27 (37) |
38 (52) |
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|
M12 |
42 (57) |
60 (81) |
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|
M12 x 1.5 |
43 (58) |
62 (84) |
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|
M14 |
66 (89) |
95 (129) |
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|
M14 x 1.5 |
72 (98) |
103 (140) |
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M16 |
103 (140) |
148 (201) |
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|
M16 x 1.5 |
110 (149) |
157 (213) |
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|
M18 |
147 (199) |
203 (275) |
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|
M18 x 1.5 |
165 (224) |
229 (310) |
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M20 |
208 (282) |
288 (390) |
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|
M20 x 1.5 |
213 (313) |
320 (434) |
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M22 |
283 (384) |
392 (531) |
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|
M22 x 1.5 |
315 (427) |
431 (584) |
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|
M24 |
360 (488) |
498 (675) |
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|
M24 x 2 |
392 (531) |
542 (735) |
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M27 |
527 (715) |
729 (988) |
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|
M27 x 2 |
569 (771) |
788 (1068) |
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|
M30 |
715 (969) |
990 (1342) |
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|
M30 x 2 |
792 (1074) |
1096 (1486) |
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- FCCC recommends that all plated and unplated fasteners be coated with oil before installation.
- Use these torque values if either the bolt or nut is lubricated or plated (zinc-phosphate conversion-coated, cadmium-plated, or waxed, Geomet 321XL coated, or waxed).