MASSEY FERGUSON 6400 Workshop Service Manual page 63

Table 3: Tightening torque values. Zinc-plated inch system threads
Nominal
dimension d
#6
#8
#10
1/4
5/16
3/8
7/16
1/2
5/8
3/4
7/8
1
1 1/8
1 1/4
1 1/2
Table 4: Reduced tightening torque values. Inch-system threads
Nominal
dimension d
#6
#8
#10
1/4
5/16
3/8
7/16
1/2
5/8
3/4
7/8
1
1 1/8
1 1/4
1 1/2
Massey Ferguson 6400 - Issue 4.b
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H
Tensile grade
SAE 5 (ISO 8.8, BS S)
Torque Nm
Min Max
1.8 2.4
3.4 4.4
4.7 6.3
11 15
22 30
39 53
64 86
100 130
200 260
350 460
560 760
840 1120
1050 1390
1500 2000
2600 3400
Tensile grade
SAE 5 (ISO 8.8, BS S)
Torque Nm
Min Max
1.5 1.9
2.7 3.5
3.8 5
8.8 12
18 24
31 42
51 69
80 104
160 210
280 370
450 610
670 900
8400 1100
1200 1600
2100 2700
Miscellaneous
Tensile grade
SAE 8 (ISO 10.9, BS V)
Torque Nm
Min Max
2 3.3
4 6.3
6 8.9
16 22
31 43
55 75
90 120
140 180
280 370
490 660
800 1060
1200 1600
1700 2200
2400 3200
4100 5400
Tensile grade
SAE 8 (ISO 10.9, BS V)
Torque Nm
Min Max
2 2.6
3 5
5 7.1
13 18
25 34
44 60
72 96
110 140
220 300
390 530
640 850
960 1280
1360 1760
1920 2560
3280 4320
1C10.7