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Couple
Couples de serrage minimum du matériel de fixation (en Nm ou livre-pouce /livre-pied) pour
applications d'assemblage normales sauf indication contraire
Le couple de serrage minimum du matériel de fixation sur
les schémas, aux spécifications de l'équipement, etc. a
la priorité.
Dans les tableaux suivants, les spécifications de couple
de serrage sont représentées conformément à la norme
ENS7001, applicable pour matériau classe 8.8 et maté-
riau classe 10.9.
Vis à tête hexagonale
Classe 8.8 en Nm (livre-pouce ou livre-pied)
Taille no-
Écrou plaqué
minale
M3
1.3 N·m
(11.5 lb in)
M4
2.9 N·m
(25.7 lb in)
M5
5.9 N·m
(52.2 lb in)
M6
10.1 N·m
(89.4 lb in)
M8
24.5 N·m
(18.1 lb ft)
M10
48.7 N·m
(35.9 lb ft)
M12
85 N·m
(62.7 lb ft)
M14
135 N·m
(99.6 lb ft)
M16
210 N·m
(154.9 lb ft)
M18
299 N·m
(220.5 lb ft)
M20
425 N·m
(313.5 lb ft)
M22
579 N·m
(427 lb ft)
M24
735 N·m
(542.1 lb ft)
M27
1073 N·m
(791.4 lb ft)
M30
1461 N·m
(1077.6 lb ft)
7 - MAINTENANCE
Contre-écrou
Écrou trempé/
Écrou huilé
plaqué
0.7 N·m
1.2 N·m
(6.2 lb in)
(10.6 lb in)
1.6 N·m
2.6 N·m
(14.2 lb in)
(23.0 lb in)
3.2 N·m
5.3 N·m
(28.3 lb in)
(46.9 lb in)
5.5 N·m
9.1 N·m
(48.7 lb in)
(80.5 lb in)
13.5 N·m
22 N·m
(10.0 lb ft)
(16.2 lb ft)
26.8 N·m
43.8 N·m
(19.8 lb ft)
(32.3 lb ft)
46.7 N·m
76.5 N·m
(34.4 lb ft)
(56.4 lb ft)
74.2 N·m
121.5 N·m
(54.7 lb ft)
(89.6 lb ft)
115.5 N·m
189 N·m
(85.2 lb ft)
(139.4 lb ft)
164.4 N·m
269.1 N·m
(121.3 lb ft)
(198.5 lb ft)
233.72 N·m
382.5 N·m
(172.4 lb ft)
(282.1 lb ft)
318.4 N·m
521.1 N·m
(234.8 lb ft)
(384.3 lb ft)
404.2 N·m
661.5 N·m
(298.1 lb ft)
(487.9 lb ft)
590.1 N·m
967.5 N·m
(435.2 lb ft)
(713.6 lb ft)
803.5 N·m
1315 N·m
(592.6 lb ft)
(969.9 lb ft)
Classe 10.9 en Nm (livre-pouce ou livre-pied)
Écrou plaqué
1.8 N·m
(15.9 lb in)
4.2 N·m
(37.2 lb in)
8.5 N·m
(75.2 lb in)
14.5 N·m
(10.7 lb ft)
35.1 N·m
(25.9 lb ft)
69.5 N·m
(51.3 lb ft)
121 N·m
(89.2 lb ft)
193 N·m
(142.3 lb ft)
301 N·m
(222 lb ft)
414 N·m
(305.4 lb ft)
587 N·m
(432.9 lb ft)
801 N·m
(590.8 lb ft)
1016 N·m
(749.4 lb ft)
1486 N·m
(1096 lb ft)
2020 N·m
(1489.9 lb ft)
7-5
Contre-écrou
Écrou trempé/
Écrou huilé
plaqué
0.9 N·m
1.6 N·m
(8.0 lb in)
(14.2 lb in)
2.3 N·m
3.7 N·m
(20.4 lb in)
(32.7 lb in)
4.6 N·m
7.6 N·m
(40.7 lb in)
(67.3 lb in)
7.9 N·m
13 N·m
(69.9 lb in)
(9.6 lb ft)
19.3 N·m
31.5 N·m
(14.2 lb ft)
(23.2 lb ft)
38.2 N·m
62.5 N·m
(28.2 lb ft)
(46.1 lb ft)
66.5 N·m
108.9 N·m
(49.0 lb ft)
(80.3 lb ft)
106.1 N·m
173.7 N·m
(78.3 lb ft)
(128.1 lb ft)
165.5 N·m
270.9 N·m
(122.1 lb ft)
(199.8 lb ft)
227.7 N·m
372.6 N·m
(167.9 lb ft)
(274.8 lb ft)
322.8 N·m
528.3 N·m
(238.1 lb ft)
(389.7 lb ft)
440.5 N·m
720.9 N·m
(324.9 lb ft)
(531.7 lb ft)
558.8 N·m
914.4 N·m
(412.1 lb ft)
(674.4 lb ft)
817.3 N·m
1337 N·m
(602.8 lb ft)
(986.1 lb ft)
1111 N·m
1818 N·m
(819.4 lb ft)
(1340.9 lb ft)
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