Torque Charts

c2 dm 21.01.001

Torque Values for U.S. Customary Thread Fasteners With Lubricated or Plated Threads

Note: † 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).
Note: * FCCC recommends that all plated and unplated fasteners be coated with oil before installation.

Table 1, Torque Values for U.S. Customary Thread Fasteners With Lubricated or Plated Threads

Thread Diameter — Pitch

Regular Hex

Flanged

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)

1/4–20

7 (9)

8 (11)

6 (8)

10 (14)

1/4–28

8 (11)

9 (12)

7 (9)

12 (16)

5/16–18

15 (20)

16 (22)

13 (18)

21 (28)

5/16–24

16 (22)

17 (23)

14 (19)

23 (31)

3/8–16

26 (35)

28 (38)

23 (31)

37 (50)

3/8–24

30 (41)

32 (43)

25 (34)

42 (57)

7/16–14

42 (57)

45 (61)

35 (47)

60 (81)

7/16–20

47 (64)

50 (68)

40 (54)

66 (89)

1/2–13

64 (87)

68 (92)

55 (75)

91 (123)

1/2–20

72 (98)

77 (104)

65 (88)

102 (138)

9/16–12

92 (125)

98 (133)

80 (108)

130 (176)

9/16–18

103 (140)

110 (149)

90 (122)

146 (198)

5/8–11

128 (173)

136 (184)

110 (149)

180 (244)

5/8–18

145 (197)

154 (209)

130 (176)

204 (277)

3/4–10

226 (306)

241 (327)

200 (271)

320 (434)

3/4–16

253 (343)

269 (365)

220 (298)

357 (484)

7/8–9

365 (495)

388 (526)

320 (434)

515 (698)

7/8–14

402 (545)

427 (579)

350 (475)

568 (770)

1–8

—

582 (789)

—

—

1–12

—

637 (863)

—

—

1–14

—

652 (884)

—

—

    Table 1, Torque Values for U.S. Customary Thread Fasteners With Lubricated or Plated Threads

    Torque Values for U.S. Customary Thread Fasteners With Dry (Unlubricated) Plain (Unplated) Threads

    Note: Threads may have residual oil, but will be dry to the touch.
    Note: 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

    Thread Diameter—Pitch

    Regular Hex

    Flanged

    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)

    Fig. 1,

    Fig. 2,

    Fig. 3,

    Fig. 4,

    Fig. 5,

    Fig. 6,

    1/4–20

    8 (11)

    10 (14)

    —

    1/4–28

    9 (12)

    12 (16)

    —

    5/16–18

    15 (20)

    22 (30)

    22 (30)

    5/16–24

    17 (23)

    25 (34)

    —

    3/8–16

    28 (38)

    40 (54)

    40 (54)

    3/8–24

    31 (42)

    45 (61)

    —

    7/16–14

    45 (61)

    65 (88)

    65 (88)

    7/16–20

    50 (68)

    70 (95)

    —

    1/2–13

    70 (95)

    95 (129)

    95 (129)

    1/2–20

    75 (102)

    110 (149)

    —

    9/16–12

    100 (136)

    140 (190)

    140 (190)

    9/16–18

    110 (149)

    155 (210)

    —

    5/8–11

    135 (183)

    190 (258)

    190 (258)

    5/8–18

    155 (210)

    215 (292)

    —

    3/4–10

    240 (325)

    340 (461)

    340 (461)

    3/4–16

    270 (366)

    380 (515)

    —

    7/8–9

    385 (522)

    540 (732)

    —

    7/8–14

    425 (576)

    600 (813)

    —

    1–8

    580 (786)

    820 (1112)

    —

    1–12

    635 (861)

    900 (1220)

    —

    1–14

    650 (881)

    915 (1241)

    —

      Table 2, Torque Values for U.S. Customary Thread Fasteners With Dry (Unlubricated) Plain (Unplated) Threads

      Torque Values for Metric Thread Fasteners With Lubricated or Plated Threads

      Note: FCCC recommends that all plated and unplated fasteners be coated with oil before installation.
      Note: 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).

      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)

      M6

      5 (7)

      7 (9)

      M8

      12 (16)

      17 (23)

      M8 x 1

      13 (18)

      18 (24)

      M10

      24 (33)

      34 (46)

      M10 x 1.25

      27 (37)

      38 (52)

      M12

      42 (57)

      60 (81)

      M12 x 1.5

      43 (58)

      62 (84)

      M14

      66 (89)

      95 (129)

      M14 x 1.5

      72 (98)

      103 (140)

      M16

      103 (140)

      148 (201)

      M16 x 1.5

      110 (149)

      157 (213)

      M18

      147 (199)

      203 (275)

      M18 x 1.5

      165 (224)

      229 (310)

      M20

      208 (282)

      288 (390)

      M20 x 1.5

      213 (313)

      320 (434)

      M22

      283 (384)

      392 (531)

      M22 x 1.5

      315 (427)

      431 (584)

      M24

      360 (488)

      498 (675)

      M24 x 2

      392 (531)

      542 (735)

      M27

      527 (715)

      729 (988)

      M27 x 2

      569 (771)

      788 (1068)

      M30

      715 (969)

      990 (1342)

      M30 x 2

      792 (1074)

      1096 (1486)
        Note:
        Parent topic: Specifications
        Document Number: 0000107090
        Manual Publication Date: 2025-12-10
        Topic Publication Date: 2025-12-10