Hyundai Ioniq: General Tightening Torque Table / General information

Hyundai Ioniq (AE) 2017-2024 Service Manual / General Information / General Tightening Torque Table / General information

Tightening Torque Table of Standard Parts

Bolt (Nominal diameter)		Nut (Nominal diameter)

Bolt/ Nut Normal screw		Torque Nm (kg.m, Ib-ft)
Nominal diameter. (mm)	Pitch [mm (in.) ]	4T	8T	10T
Nominal diameter. (mm)
M5	0.8 (0.031)	2.0 - 3.0 (0.2 - 0.3, 1.4 - 2.2)	4.9 - 6.9 (0.5 - 0.7, 3.6 - 5.1)	7.8 - 10.8 (0.8 - 1.1, 5.8 - 8.0)
M6	1 (0.039)	2.9 - 4.9 (0.3 - 0.5, 2.2 - 3.6)	8.8 - 12.7 (0.9 - 1.3, 6.5 - 9.4)	13.7 - 18.6 (1.4 - 1.9, 10.1 - 13.7)
M8	1.25 (0.049)	8.8 - 11.8 (0.9 - 1.2, 6.5 - 8.7)	22.6 - 30.4 (2.3 - 3.1, 16.6 - 22.4)	33.3 - 44.1 (3.4 - 4.5, 24.6 - 32.5)
M10	1.5 (0.059)	16.7 - 22.6 (1.7 - 2.3, 12.3 - 16.6)	45.1 - 60.8 (4.6 - 6.2, 33.3 - 44.8)	65.7 - 88.3 (6.7 - 9.0, 48.5 - 65.1)
M12	1.75 (0.068)	29.4 - 39.2 (3.0 - 4.0, 21.7 - 28.9)	78.5 - 105.9 (8.0 - 10.8, 57.9 - 78.1)	114.7 - 154.9 (11.7 - 15.8, 84.6 - 114.3)
M14	2 (0.078)	47.1 - 63.7 (4.8 - 6.5, 34.7 - 47.0)	125.5 - 169.7 (12.8 - 17.3, 92.6 - 125.1)	183.4 - 249.1 (18.7 - 25.4, 135.3 - 183.7)
M16	2 (0.078)	73.5 - 100.0 (7.5 - 10.2, 54.2 - 73.8)	197.1 - 266.7 (20.1 - 27.2, 145.4 - 196.7)	288.3 - 390.3 (29.4 - 39.8, 212.7 - 287.9)
M20	2.5 (0.098)	144.2 - 195.2 (14.7 - 19.9, 106.3 - 143.9)	396.2 - 535.4 (40.4 - 54.6, 292.2 - 394.9)	565.8 - 764.9 (57.7 - 78.0, 417.3 - 564.2)
M24	3 (0.118)	249.1 - 337.3 (25.4 - 34.4, 183.7 - 248.8)	687.4 - 929.7 (70.1 - 94.8, 507.0 - 685.7)	975.8 - 1320.0 (99.5 - 134.6, 719.7 - 973.6)
M30	3.5 (0.137)	499.2 - 674.7 (50.9 - 68.8, 368.2 - 497.6)	1372.9 - 1858.4 (140.0 - 189.5, 1012.6 - 1370.7)	1956.4 - 2647.8 (199.5 - 270.0, 1443.0 - 1952.9)

Bolt/ Nut Thin screw		Torque Nm (kg.m, Ib-ft)
Nominal diameter. (mm)	Pitch [mm (in.) ]	4T	8T	10T
Nominal diameter. (mm)
M5	0.5 (0.019)	2.0 - 3.0 (0.2 - 0.3, 1.4 - 2.2)	5.9 - 8.8 (0.6 - 0.9, 4.3 - 6.5)	8.8 - 12.7 (0.9 - 1.3, 6.5 - 9.4)
M6	0.75 (0.029)	3.9 - 4.9 (0.4 - 0.5, 2.9 - 3.6)	9.8 - 13.7 (1.0 - 1.4, 7.2 - 10.1)	14.7 - 20.6 (1.5 - 2.1, 10.8 - 15.2)
M8	1 (0.039)	8.8 - 11.8 (0.9 - 1.2, 6.5 - 8.7)	24.5 - 32.4 (2.5 - 3.3, 18.1 - 23.9)	35.3 - 48.1 (3.6 - 4.9, 26.0 - 35.4)
M10	1.25 (0.049)	17.7 - 23.5 (1.8 - 2.4, 13.0 - 17.4)	47.1 - 63.7 (4.8 - 6.5, 34.7 - 47.0)	69.6 - 94.1 (7.1 - 9.6, 51.4 - 69.4)
M12	1.25 (0.049)	32.4 - 44.1 (3.3 - 4.5, 23.9 - 32.5)	86.3 - 117.7 (8.8 - 12.0, 63.7 - 86.8)	127.5 - 172.6 (13.0 - 17.6, 94.0 - 127.3)
M14	1.5 (0.059)	51.0 - 69.6 (5.2 - 7.1, 37.6 - 51.4)	136.3 - 185.3 (13.9 - 18.9, 100.5 - 136.7)	201.0 - 271.6 (20.5 - 27.7, 148.3 - 200.4)
M16	1.5 (0.059)	79.4 - 107.9 (8.1 - 11.0, 58.6 - 79.6)	211.8 - 286.4 (21.6 - 29.2, 156.2 - 211.2)	311.8 - 421.7 (31.8 - 43.0, 230.0 - 311.0)
M20	1.5 (0.059)	163.8 - 221.6 (16.7 - 22.6, 120.8 - 163.5)	448.2 - 607.0 (45.7 - 61.9, 330.5 - 447.7)	639.4 - 864.9 (65.2 - 88.2, 471.6 - 638.0)
M24	2 (0.078)	276.5 - 373.6 (28.2 - 38.1, 204.0 - 275.6)	759.0 - 1026.8 (77.4 - 104.7, 559.8 - 757.3)	1080.7 - 1462.2 (110.2 - 149.1, 797.1 - 1078.4)
M30	2 (0.078)	562.9 - 762.0 (57.4 - 77.7, 415.2 - 562.0)	1553.4 - 2102.5 (158.4 - 214.4, 1145.7 - 1550.8)	2210.4 - 2991.0 (225.4 - 305.0, 1630.3 - 2206.1)

Flange Bolt (Nominal diameter)		Flange Nut (Nominal diameter)

Flange Bolt/ Nut Normal screw		Torque Nm (kg.m, Ib-ft)
Nominal diameter. (mm)	Pitch [mm (in.) ]	4T	8T	10T
Nominal diameter. (mm)
M5	0.8 (0.031)	2.0 - 2.9 (0.2 - 0.3, 1.4 - 2.2)	5.9 - 7.8 (0.6 - 0.8, 4.3 - 5.8)	8.8 - 11.8 (0.9 - 1.2, 6.5 - 8.7)
M6	1 (0.039)	3.9 - 4.9 (0.4 - 0.5, 2.9 - 3.6)	9.8 - 13.7 (1.0 - 1.4, 7.2 - 10.1)	14.7 - 19.6 (1.5 - 2.0, 10.8 - 14.5)
M8	1.25 (0.049)	8.8 - 11.8 (0.9 - 1.2, 6.5 - 8.7)	24.5 - 32.4 (2.5 - 3.3, 18.1 - 23.9)	35.3 - 48.1 (3.6 - 4.9, 26.0 - 35.4)
M10	1.5 (0.059)	17.7 - 24.5 (1.8 - 2.5, 13.0 - 18.1)	48.1 - 65.7 (4.9 - 6.7, 35.4 - 48.5)	70.6 - 96.1 (7.2 - 9.8, 52.1 - 70.9)
M12	1.75 (0.068)	31.4 - 43.1 (3.2 - 4.4, 23.1 - 31.8)	84.3 - 113.8 (8.6 - 11.6, 62.2 - 83.9)	123.6 - 167.7 (12.6 - 17.1, 91.1 - 123.7)
M14	2 (0.078)	51.0 - 68.6 (5.2 - 7.0, 37.6 - 50.6)	135.3 - 182.4 (13.8 - 18.6, 99.8 - 134.5)	198.1 - 268.7 (20.2 - 27.4, 146.1 - 198.2)
M16	2 (0.078)	79.4 - 107.9 (8.1 - 11.0, 58.6 - 79.6)	212.8 - 288.3 (21.7 - 29.4, 157.0 - 212.7)	311.8 - 421.7 (31.8 - 43.0, 230.0 - 311.0)

Flange Bolt/ Nut Thin screw		Torque Nm (kg.m, Ib-ft)
Nominal diameter. (mm)	Pitch [mm (in.) ]	4T	8T	10T
Nominal diameter. (mm)
M5	0.5 (0.019)	2.9 - 2.9 (0.3 - 0.3, 2.2 - 2.2)	6.9 - 8.8 (0.7 - 0.9, 5.1 - 6.5)	9.8 - 13.7 (1.0 - 1.4, 7.2 - 10.1)
M6	0.75 (0.029)	3.9 - 5.9 (0.4 - 0.6, 2.9 - 4.3)	10.8 - 14.7 (1.1 - 1.5, 8.0 - 10.8)	16.7 - 21.6 (1.7 - 2.2, 12.3 - 15.9)
M8	1 (0.039)	9.8 - 12.7 (1.0 - 1.3, 7.2 - 9.4)	26.5 - 35.3 (2.7 - 3.6, 19.5 - 26.0)	38.2 - 52.0 (3.9 - 5.3, 28.2 - 38.3)
M10	1.25 (0.049)	19.6 - 25.5 (2.0 - 2.6, 14.5 - 18.8)	51.0 - 68.6 (5.2 - 7.0, 37.6 - 50.6)	75.5 - 102.0 (7.7 - 10.4, 55.7 - 75.2)
M12	1.25 (0.049)	35.3 - 48.1 (3.6 - 4.9, 26.0 - 35.4)	94.1 - 126.5 (9.6 - 12.9, 69.4 - 93.3)	138.3 - 186.3 (14.1 - 19.0, 102.0 - 137.4)
M14	1.5 (0.059)	55.9 - 75.5 (5.7 - 7.7, 41.2 - 55.7)	148.1 - 200.1 (15.1 - 20.4, 109.2 - 147.6)	216.7 - 293.2 (22.1 - 29.9, 159.8 - 216.3)
M16	1.5 (0.059)	86.3 - 116.7 (8.8 - 11.9, 63.7 - 86.1)	229.5 - 309.9 (23.4 - 31.6, 169.3 - 228.6)	336.4 - 455.0 (34.3 - 46.4, 248.1 - 335.6)

1)	The torques shown in the table are standard values under the following conditions.

•	Nuts and bolts are made of galvanized steel bar.

•	Galvanized plain steel washers are inserted.

•	All nuts, bolts and plain washers are dry.

2)	The torques shown in the table are not applicable.

•	When spring washers, toothed washers and the like are inserted.

•	If plastic parts are fastened.

•	If self-tapping screws or self-locking nuts are used.

•	If threads and surfaces are coated with oil.

General Tightening Torque Table

Basic Service Symbols

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