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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. = 0.7376 ft.lbs.
TORQUE VALUES FOR IMPERIAL BOLTS
Head Marking
Bolt
Dia.
ft.lb.
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
7/8"
1"
1-1/8"
1-1/4"
1-3/8"
1-1/2"
TORQUE VALUES FOR METRIC BOLTS.
Head Marking
Bolt
Dia.
ft.lb.
6mm
8mm
10mm
12mm
14mm
16mm
18mm
20mm
22mm
24mm
27mm
30mm
No Marks
Grade Two
Value (Dry)
Nm.
5.5
7.5
11
15.0
20
27.0
32
43.0
50
68.0
70
95.0
100
135.0
175
240.0
175
240.0
270
360.0
375
510.0
530
720.0
700
950.0
930
1250.0
4.8
4.8
Value (Dry)
Nm.
4.5
6.1
11
14.9
21
28.5
37
50.2
60
81.4
92
125.0
125
170.0
180
245.0
250
340.0
310
420.0
450
610.0
625
850.0
Head Marking
Three Lines
Grade Five
Value (Dry)
ft.lb.
Nm.
9
12.2
18
25.0
33
45.0
52
70.0
80
110.0
115
155.0
160
220.0
280
380.0
450
610.0
675
915.0
850
115.0
1200
1626.0
1550
2100.0
2100
2850.0
8.8
Head Marking
8.8
Value (Dry)
ft.lb.
Nm.
8.5
11.5
20
27.1
40
54.2
70
95.0
110
150.0
175
240.0
250
340.0
350
475.0
475
645.0
600
810.0
875
1180.0
1200
1626.0
50
NOTE:
The values in
the chart apply
to fasteners as
Head Marking
received from
Six Lines
the supplier,
Grade Eight
dry or when
Value (Dry)
lubricated with
ft.lb.
Nm.
normal engine
12.5
17.0
oil. They DO
26
35.2
NOT apply if
46
63.0
special
75
100.0
graphited,
115
155.0
molydisulphide
160
220.0
greases, or
225
305.0
other extreme
400
540.0
pressure
650
880.0
lubricants are
975 1325.0
used. This
1350 1830.0
applies to both
1950 2650.0
UNF and UNC
2550 3460.0
coarse threads .
3350
4550.0
10.9
Head Marking
10.9
Value (Dry)
ft.lb.
Nm.
12
16.3
30
40.1
60
81.4
105
140.0
165
225.0
255
350.0
350
475.0
500
675.0
675
915.0
850 1150.0
1250 1700.0
1700 2300.0
12.9
Head Marking
12.9
Value (Dry)
ft.lb.
Nm.
14.5
20.0
35
47.5
70
95.0
120
160.0
190
260.0
300
400.0
410
550.0
580
790.0
800
1090.0
1000
1350.0
1500
2000.0
2000
2700.0
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