TECHNICAL DATA

Torque Specifications

Engine crankshaft bolt

50 ft/lb (67 Nm)

Standard ¼" fasteners

9 ft/lb (12 Nm)

Deck pulley bolts

150 ft/lb (203 Nm)

Standard 5/16" fasteners

18 ft/lb (25 Nm)

Lug nuts

75 ft/lb (100 Nm)

Standard 3/8" fasteners

33 ft/lb (44 Nm)

Blade bolt

90 ft/lb (122 Nm)

Standard 7/16" fasteners

52 ft/lb (70 Nm)

 

 

Standard ½" fasteners

80 ft/lb (110 Nm)

HEX HEAD CAP SCREWS

The torque values shown should be used as a general guideline when specific torque values are not given.

U.S. Standard Hardware

Grade

 

SAE Grade 5

SAE Grade 8

Flangelock Screw

 

 

 

 

 

 

 

w/Flangelock Nut

 

 

 

 

 

 

 

 

 

 

 

Size

ft./lbs

Nm

ft./lbs

Nm

ft./lbs

Nm

 

 

 

 

 

 

 

 

 

 

 

¼

9

12

13

18

 

 

or

 

5/16

18

24

28

38

24

33

fine

 

 

 

 

 

 

 

 

 

3/8

31

42

46

62

40

54

inches,in

 

 

 

 

 

 

 

 

 

½

75

102

115

156

 

 

 

 

7/16

50

68

75

108

 

 

(DiameterSize thread)

 

 

 

 

 

 

 

 

 

9/16

110

150

165

224

 

 

 

 

 

 

 

 

5/8

150

203

225

305

 

 

 

 

¾

250

339

370

502

 

 

Shank coarse

 

7/8

378

513

591

801

 

 

 

11/8

782

1060

1410

1912

 

 

** Grade 5 - Minimum commercial quality (lower quality not recommended)

Metric Standard Hardware

Grade

 

 

Grade 8.8

 

Grade 10.9

 

Grade 12.9

 

 

Size

ft./lbs

 

Nm

ft./lbs

 

Nm

ft./lbs

 

Nm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M4

1.5

 

2

2.2

 

3

2.7

 

3.6

thread)

 

M5

3

 

4

4.5

 

6

5.2

 

7

 

M6

5.2

 

7

7.5

 

10

8.2

 

11

 

 

 

 

 

coarseor

 

M7

8.2

 

11

12

 

16

15

 

20

 

M10

24

 

32

35.2

 

47

43.5

 

58

 

 

M8

13.5

 

18

18.8

 

25

21.8

 

29

fine

 

 

 

 

 

 

 

 

 

 

 

 

M12

43.5

 

58

62.2

 

83

75

 

100

inches,in

 

 

 

 

 

M16

108

 

144

147

 

196

176

 

235

 

 

M14

70.5

 

94

100

 

133

119

 

159

(Diameter

 

 

 

 

 

 

 

 

 

 

 

 

M18

142

 

190

202

 

269

242

 

323

 

 

 

 

 

 

 

M20

195

 

260

275

 

366

330

 

440

Size

 

M22

276

 

368

390

 

520

471

 

628

 

M24

353

 

470

498

 

664

596

 

794

Shank

 

 

 

 

 

M27

530

 

707

474

 

996

904

 

1205

60

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Image 60
Husqvarna PZ29 CE manual Torque Specifications, Metric Standard Hardware