Metric Torque Values - Sabre 1338 Gear Technical Manual

SPECIFICATIONS & INFORMATION

METRIC TORQUE VALUES

Property
Class
and
Head
Markings
Property
Class
and
Nut
Markings
Class 4.8
Lubricated
Size
Nm lb-ft
M6 4.7 3.5
M8 11.5 8.5
M10 23 17
M12 40 29.5 50
M14 63 46
M16 100 74
M18 135 100
M20 190 140
M22 265 195
M24 330 245
M27 490 360
M30 660 490
M33 900 665
M36 1150 850
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 fasteners 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.
a
"Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings.
"Dry" means plain or zinc plated without any lubrication.
3/5/97
www.servicemanualall.com
4.8 8.8
4.8 8.8
4.8 8.8
5
5 10
Class 8.8 or 9.8
a a
Dry Lubricated
Nm lb-ft Nm lb-ft
6 4.4 9 6.6
14.5 10.7 22 16
29 21 43 32
37 75 55
80 59 120 88
125 92 190 140
175 125 265 195
245 180 375 275
330 245 510 375
425 315 650 480
625 460 950 700
850 625 1290 950
1150 850 1750 1300 2200 1625 2500 1850 3150 2325 2900 2150 3700 2730
1450 1075 2250 1650 2850 2100 3200 2350 4050 3000 3750 2770 4750 3500
9.8
9.8
9.8
10
10
Class 10.9
a a
Dry Lubricated
Nm lb-ft Nm lb-ft
11.5 8.5 13 9.5
28 20.5 32 23.5 40
55 40 63 46
95 70 110 80
150 110 175 130
240 175 275 200
330 245 375 275
475 350 530 390
650 480 725 535
820 600 920 680
1200 885 1350 1000 1700 1250 1580 1160 200
1630 1200 1850 1350 2300 1700 2140 1700 2700 2000
METRIC TORQUE VALUES
10.9
12.9
10.9
10.9 12.9
10
12
Class 12.9
a a
Dry Lubricated
Nm lb-ft Nm lb-ft
16.5 12.5 15.5 11.5
29.5 37 27.5 47
80 59 75 55
140 105 130 95
220 165 205 150
350 225 320 235
475 350 440 325
675 500 625 460
920 680 850 625
115 850 108 800
12.9
12.9
12
a a
Dry
Nm lb-ft
19.5 14.5
35
95 70
165 120
260 190
400 300
560 410
790 580
108 800
135 100
1500
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