Maintenance—General
DH10862,00000E4 -19-02JUN09-1/1
Metric Bolt and Cap Screw Torque Values
METRIC BOLT AND CAP SCREW TORQUE VALUES—Tolerance is ±10% unless otherwise specified
T
ORQ2
—UN—15APR13
Top—Property Class and Harvester Head Markings; Bottom—Property Class and Nut Markings
The following data is intended to assist in the general maintenance of the carrier. It is recommended
that only grade 10.9 hardware or better be used.
Class 4.8
Class 8.8 or 9.8
Class 10.9
Class 12.9
Thread
Size
Lubricated
a
N·m (lb-ft)
Dry
b
N·m (lb-ft)
Lubricated
a
N·m (lb-ft)
Dry
b
N·m (lb-ft)
Lubricated
a
N·m (lb-ft)
Dry
b
N·m (lb-ft)
Lubricated
a
N·m (lb-ft)
Dry
b
N·m (lb-ft)
M6
4.7 (3.5)
6 (4.4)
9 (6.6)
11.5 (8.5)
13 (9.5)
16.5 (12.2)
15.5 (11.5)
19.5 (14.5)
M8
11.5 (8.5)
14.5 (10.7)
22 (16)
28 (20.5)
32 (23.5)
40 (29.5)
37 (27.5)
47 (35)
M10
23 (17)
29 (21)
43 (32)
55 (40)
63 (46)
80 (59)
75 (55)
95 (70)
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)
a
"Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings.
b
"Dry" means plain or zinc plated without any lubrication.
CAUTION: Use only metric tools on metric hardware. Other
tools may not fit properly. Tool may slip and cause injury.
DO NOT use these values if a different torque value or tightening
procedure is given for a specific application. Torque values listed are
for general use only. Check tightness of fasteners periodically.
Shear bolts are designed to fail under predetermined loads. Always
replace shear bolts with identical property class.
Fasteners should be replaced with the same or higher property class.
If higher property class fasteners are used, these should only be
tightened to the strength of the original.
Make sure fastener threads are clean and that you properly start thread
engagement. This will prevent them from failing when tightening.
Tighten plastic insert or crimped steel-type lock nuts to approximately
50 percent of the dry torque shown in the chart, applied to the nut,
not to the bolt head. Tighten toothed or serrated-type lock nuts to the
full torque value.
3-3-4
053122
PN=74
