John Deere 6068 User Manual
Specifications
DX,TORQ2
–19–24APR03–1/1
Metric Bolt and Screw Torque Values
4.8
4.8
8.8
9.8
10.9
12.9
12.9
12.9
12.9
10.9
9.8
8.8
4.8
TS1670
–UN–01MAY03
Bolt or
Class 4.8
Class 8.8 or 9.8
Class 10.9
Class 12.9
Screw
Lubricated
a
Dry
b
Lubricated
a
Dry
b
Lubricated
a
Dry
b
Lubricated
a
Dry
b
Size
N•m
lb-in
N•m
lb-in
N•m
lb-in
N•m
lb-in
N•m
lb-in
N•m
lb-in
N•m
lb-in
N•m
lb-in
M6
4.7
42
6
53
8.9
79
11.3
100
13
115
16.5
146
15.5
137
19.5
172
N•m
lb-ft
N•m
lb-ft
N•m
lb-ft
N•m
lb-ft
M8
11.5
102
14.5
128
22
194
27.5
243
32
23.5
40
29.5
37
27.5
47
35
N•m
lb-ft
N•m
lb-ft
N•m
lb-ft
M10
23
204
29
21
43
32
55
40
63
46
80
59
75
55
95
70
N•m
lb-ft
M12
40
29.5
50
37
75
55
95
70
110
80
140
105
130
95
165
120
M14
63
46
80
59
120
88
150
110
175
130
220
165
205
150
260
190
M16
100
74
125
92
190
140
240
175
275
200
350
255
320
235
400
300
M18
135
100
170
125
265
195
330
245
375
275
475
350
440
325
560
410
M20
190
140
245
180
375
275
475
350
530
390
675
500
625
460
790
580
M22
265
195
330
245
510
375
650
480
725
535
920
680
850
625
1080
800
M24
330
245
425
315
650
480
820
600
920
680
1150
850
1080
800
1350
1000
M27
490
360
625
460
950
700
1200
885
1350
1000
1700
1250
1580
1160
2000
1475
M30
660
490
850
625
1290
950
1630
1200
1850
1350
2300
1700
2140
1580
2700
2000
M33
900
665
1150
850
1750
1300
2200
1625
2500
1850
3150
2325
2900
2150
3700
2730
M36
1150
850
1450
1075
2250
1650
2850
2100
3200
2350
4050
3000
3750
2770
4750
3500
Torque values listed are for general use only, based on the strength
Shear bolts are designed to fail under predetermined loads. Always
of the bolt or screw. DO NOT use these values if a different torque
replace shear bolts with identical property class. Replace fasteners
value or tightening procedure is given for a specific application. For
with the same or higher property class. If higher property class
stainless steel fasteners or for nuts on U-bolts, see the tightening
fasteners are used, tighten these to the strength of the original. Make
instructions for the specific application. Tighten plastic insert or
sure fastener threads are clean and that you properly start thread
crimped steel type lock nuts by turning the nut to the dry torque
engagement. When possible, lubricate plain or zinc plated fasteners
shown in the chart, unless different instructions are given for the
other than lock nuts, wheel bolts or wheel nuts, unless different
specific application.
instructions are given for the specific application.
a
“Lubricated” means coated with a lubricant such as engine oil, fasteners with phosphate and oil coatings, or M20 and larger fasteners with
JDM F13C zinc flake coating.
b
“Dry” means plain or zinc plated without any lubrication, or M6 to M18 fasteners with JDM F13B zinc flake coating.
55-8
080706
PN=235