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.
Periodically check the tightness of fasteners.
Shear bolts are designed to fail under predetermined
loads. Always replace shear bolts with bolts of the
identical grade.
Fasteners should be replaced with the same or higher
grade. If higher grade fasteners are used, only tighten
them to the strength of the original.
Make sure fastener threads are clean, and start thread
engagement properly. This will prevent them from failing
when tightening.
Tighten plastic insert or crimped steel-type lock nuts to
approximately 50 per cent 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.
T7M7G6M,0000626-19-13OCT21
Metric Bolt and Cap Screw Torque Values
METRIC BOLT AND CAP SCREW TORQUE VALUES—Tolerance is ±10% unless otherwise specified
TORQ2—UN—15APR13
Top— Class and Harvester Head Markings; Bottom— Class and Nut Markings
The following data is intended to assist in general maintenance. It is recommended only class 10.9 hardware or better is 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: Only use metric tools on metric
hardware; other tools may not fit properly. Tools
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.
Periodically check the tightness of fasteners.
Maintenance: General
3-3-3
Summary of Contents for HTH622B SIII
Page 65: ...Notes...
Page 66: ...Notes...
