Bolt Torque - Echo CH8540 Owner's Manual

7.1 BOLT TORQUE

The tables below are for reference purposes only and their use by anyone is entirely voluntary, unless otherwise noted.
Reliance on their content for any purpose is at the sole risk of that person and any loss or damage resulting from the
use of this information is the responsibility of that person.
BOLT DIAMETER (A)
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"
BOLT
DIAMETER (A)
NM
M3 0.5
M4 3
M5 5
M6 6
M8 15
M10 29
M12 50
M14 80
M16 125
M18 175
M20 240
M22 330
M24 425
M27 625
*Torque value for bolts and capscrews are identified by their head markings.
Torque figures indicated above are valid for non-greased or non-oiled threads and heads unless otherwise specified. Therefore, do not grease or oil
bolts or capscrews unless otherwise specified in this manual. When using locking elements, increase torque values by 5%.
SAE 2
NM
7.5
15
27
41
68
97
122
217
230
298
407
570
4.8
FT-LB NM
0.4 –
2.2 –
4 –
4.5 11
11 28
21 55
37 95
60 150
92 240
125 330
180 475
250 650
310 825
450 1200
8 INCH CHIPPER
BOLT TORQUE*
SAE 5
FT-LB NM
5.5 11
11 23
20 41
30 68
50 102
70 149
90 203
160 353
170 542
220 786
300 1085
420 2631
BOLT TORQUE*
8.8 10.9
FT-LB NM
– –
– –
– –
8.5 17
20 40
40 80
70 140
110 225
175 350
250 475
350 675
475 925
600 1150
875 1700
SPECIFICATIONS
SAE 8
FT-LB NM
8 16
17 34
30 61
50 95
75 149
110 203
150 312
260 515
400 814
580 1220
800 1736
1940 2468
12.9
FT-LB NM
– –
– –
– –
12 19
30 47
60 95
105 165
165 260
255 400
350 560
500 800
675 1075
850 1350
1250 2000
FT-LB
12
25
45
70
110
150
230
380
600
900
1280
1820
FT-LB
–
–
–
14.5
35
70
120
190
300
410
580
800
1000
1500
21