Macdon D65 User Manual download pdf (Page 7)

169784 5 Revision A

RECOMMENDED TORQUES

A. GENERAL

The tables shown below give correct torque

values for various bolts and cap screws.

 Tighten all bolts to the torques specified in

chart, unless otherwise noted throughout this

manual.

 Check tightness of bolts periodically, using

bolt torque chart as a guide.

 Replace hardware with the same

strength bolt.

 Torque figures are valid for non-greased or

non-oiled threads and heads unless otherwise

specified. Do not grease or oil bolts or cap

screws unless specified in this manual.

 When using locking elements, increase torque

values by 5%.

B. SAE BOLTS

BOLT DIA.

"A"

in.

NC BOLT TORQUE*

SAE-5 SAE-8

lbf·ft N·m lbf·ft N·m

1/4 9 12 11 15

5/16 18 24 25 34

3/8 32 43 41 56

7/16 50 68 70 95

1/2 75 102 105 142

9/16 110 149 149 202

5/8 150 203 200 271

3/4

265 359

365 495

7/8 420 569 600 813

1 640 867 890 1,205

* Torque categories for bolts and cap screws are identified by

their head markings.

C. METRIC BOLTS

BOLT DIA.

"A"

STD COARSE BOLT TORQUE*

8.8 10.9

lbf·ft N·m lbf·ft N·m

M3 0.4 0.5 1.3 1.8

M4 2.2 3 3.3 4.5

M5 4 6 7 9

M6 7 10 11 15

M8 18 25 26 35

M10 37 50 52 70

M12 66 90 92 125

M14 103 140 148 200

M16 166 225 229 310

M20 321 435 450 610

M24 553 750 774 1050

M30 1,103 1,495 1,550 2,100

M36 1,917 2,600 2,710 3,675

* Torque categories for bolts and cap screws are identified by

their head markings.

SAE-5

SAE-8

1 2 3 4 5 6 7 8 9 10 11 12 ... 41 42

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Macdon D65 User Manual Page 7

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