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REGLAGES COUPLES POUR AGRAFES
Le tableau dessous montre la clé correcte pour les agrafes. Lisez ce tableau quand vous
serrez ou remplacez les boulons pour déterminer le type de boulon et la clé correcte. Sauf
avis contraire les valeurs couples sont assignées dans le texte du manuel.
Le couple conseillé est au Pied-Kilo et Mètres- Newton dans ce manuel.
La conversion est. 1 MN. = 1.356 ft.lbs.
TORQUE VALUES FOR IMPERIAL BOLTS
Head Marking
No Marks
Grade Two
Bolt
Value (Dry)
Dia.
ft.lb.
1/4"
5.5
5/16"
11
3/8"
20
7/16"
32
1/2"
50
9/16"
70
5/8"
100
3/4"
175
7/8"
175
1"
270
1-1/8"
375
1-1/4"
530
1-3/8"
700
1-1/2"
930
TORQUE VALUES FOR METRIC BOLTS.
4.8
Head Marking
4.8
Bolt
Value (Dry)
Dia.
ft.lb.
6mm
4.5
8mm
11
10mm
21
12mm
37
14mm
60
16mm
92
18mm
125
20mm
180
22mm
250
24mm
310
27mm
450
30mm
625
Head Marking
Three Lines
Grade Five
Value (Dry)
Nm.
ft.lb.
7.5
9
15.0
18
27.0
33
43.0
52
68.0
80
95.0
115
135.0
160
240.0
280
240.0
450
360.0
675
510.0
850
720.0
1200
950.0
1550
1250.0
2100
8.8
Head Marking
8.8
Value (Dry)
Nm.
ft.lb.
6.1
8.5
14.9
20
28.5
40
50.2
70
81.4
110
125.0
175
170.0
250
245.0
350
340.0
475
420.0
600
610.0
875
850.0
1200
Head Marking
Six Lines
Grade Eight
Value (Dry)
Nm.
ft.lb.
12.2
12.5
25.0
26
45.0
46
70.0
75
110.0
115
155.0
160
220.0
225
380.0
400
610.0
650
915.0
975
115.0
1350
1626.0
1950
2100.0
2550
2850.0
3350
10.9
Head Marking
10.9
Value (Dry)
Nm.
ft.lb.
11.5
12
27.1
30
54.2
60
95.0
105
150.0
165
240.0
255
340.0
350
475.0
500
645.0
675
810.0
850
1180.0
1250
1626.0
1700
37
NOTE:
The values in
the chart apply
to fasteners as
received from
the supplier,
dry or when
lubricated with
Nm.
normal engine
17.0
oil. They DO
35.2
NOT apply if
63.0
special
100.0
graphited,
155.0
molydisulphide
220.0
greases, or
305.0
other extreme
540.0
pressure
880.0
lubricants are
1325.0
used. This
1830.0
applies to both
2650.0
UNF and UNC
3460.0
coarse threads .
4550.0
12.9
Head Marking
12.9
Value (Dry)
Nm.
ft.lb.
16.3
14.5
40.1
35
81.4
70
140.0
120
225.0
190
350.0
300
475.0
410
675.0
580
915.0
800
1150.0
1000
1700.0
1500
2300.0
2000
Nm.
20.0
47.5
95.0
160.0
260.0
400.0
550.0
790.0
1090.0
1350.0
2000.0
2700.0
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