Case 445 - Page 11

INTRODUCTION
GRADE 8.8 Bolts, Nuts and Studs GRADE 10.9 Bolts, Nuts and Studs
Dry Dry
SIZE
Nm
lb/in lb/ft
Nm
lb/in lb/ft
M20 400 to 450 293 to 330 555 to 620 406 to 460
M24 690 to 780 510 to 575 955 to 1075 705 to 790
M30 1375 to 1545 1010 to 1140 1900 to 2140 1400 to 1580
M36 2400 to 2700 1770 to 1990 3315 to 3730 2445 to 2750
Use the above torques when specifications are not given.These values apply to fasteners with both coarse
and fine threads as received from supplier, plated or unplated, or when lubricated with engine oil. These
values do not apply if gra phite or Molydisulfide grease or oil is used. Use of a click type torque wrench, or
better is required.
Grade 12.9 Bolts, Nuts, and Studs
Usually torq
ue values specified to grade 10.9 fasteners can be used satisfactorily on grade 12.9 fasteners.
•
TORQUE S PECI
FICATIONS - STEEL HYDRAULIC FITTINGS
37 Degree Flare Fitting
Nom. SAE
Dash Size
Tube OD/Hose ID Thread Size
Newton
metres
lb/in lb/ft
-2
5/16 - 24
8to9 72to84
-3
3/8 - 24
11 to 12 96 to 108
-4 6.4 mm
1/4 inch 7/16 - 20
14 to 16 120 to 144
-5
7.9 m m
5/16 inch 1/2 - 20
18 to 21 156 to 192
-6 9.5 mm
3/8 inch 9/16 - 18
27 to 33 240 to 300
-8 12.7 mm
1/2 inch 3/4 - 16
46 - 56 408 to 504
-10 15.9 m m
5/8 inch 7/8 - 14
77 to 85 684 to 756
-12 19.0 m m
3/4 inch 1-1/16 - 12
107 to 119 79 to 88
-14 22.2 m m
7/8 inch 1-3/16 -12
127 to 140 94 to 103
-16 25.4 mm 1.0 inch
1-5/16 - 12
131 to 156 97 to 117
-20 31.8 m m
1-1/4 inch 1-5/8 - 1 2
197to223 145to165
-24 38.1 m m
1-1/2 inch 1-7/8 - 1 2
312to338 230to250
Straight Thread with O-ring
Nom. SAE
Dash Size
Tube OD/Hose ID Thread Size
Newton
metres
lb/in lb/ft
-2
5/16 - 24
8 to 9 72 to 84
-3
3/8 - 24
11 to 12 96 to 108
-4 6.4 mm
1/4 inch 7/16 - 20
20 to 25 180 to 228
-5
7.9 m m
5/16 inch 1/2 - 20
27 to 33 240 to 300
-6 9.5 mm
3/8 inch 9/16 - 18
43 to 54 384 to 480
-8 12.7 mm
1/2 inch 3/4 - 16
73 to 90 648 to 804
-10 15.9 mm
5/8 inch 7/8 - 14
100to124 74to92
-12 19.0 mm
3/4 inch 1-1/16 - 12
138 to 173 102 to 128
-14 22.2 mm
7/8 inch 1-3/16 - 12
173 to 216 128 to 160
-16 25.4 mm 1.0 inch
1-5/16 - 12
203 to 253 150 to 187
-20 31.8 mm
1-1/4 inch 1-5/8 - 12
308 to 357 227 to 264
-24 38.1 mm
1-1/2 inch 1-7/8 - 12
492 to 542 363 to 400
Split F
lange Mounting Bolts
Size
Newton metres
lb/in lb/ft
5/16 - 1
8
20 to 27 180 to 240
3/8 - 1
6
27 to 34 240 to 300
7/16 -
14
47 to 61 420 to 540
1/2 - 1
3
74 to 88 55 to 65
5/8 - 1
1
190to203 140to150
6-75491 1 04/05/2005
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