TECHNICAL DATA

Torque Specifications

Engine crankshaft bolt

50 ft/lb (67 Nm)

Standard 5/16" fasteners

18 ft/lb (25 Nm)

Deck pulley bolts

150 ft/lb (203 Nm)

Standard 3/8" fasteners

33 ft/lb (44 Nm)

Lug nuts

75 ft/lb (100 Nm)

Standard 7/16" fasteners

52 ft/lb (70 Nm)

Blade bolt

90 ft/lb (122 Nm)

Standard ½” fasteners

80 ft/lb (110 Nm)

Standard ¼" fasteners

9 ft/lb (12 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

thread)

ft./lbs

¼

 

coarse

5/16

3/8

fine or

7/16

inches,

½

 

 

/16

in

9

(Diameter

5/8

 

Size

¾

7/8

Shank

11/8

SAE Grade 5

SAE Grade 8

Flangelock Screw

 

 

 

 

 

 

w/Flangelock Nut

ft./lbs

 

Nm

ft./lbs

 

Nm

ft./lbs

 

Nm

 

 

 

9

 

12

13

 

18

 

 

 

18

 

24

28

 

38

24

 

33

31

 

42

46

 

62

40

 

54

50

 

68

75

 

108

 

 

 

75

 

102

115

 

156

 

 

 

110

 

150

165

 

224

 

 

 

150

 

203

225

 

305

 

 

 

250

 

339

370

 

502

 

 

 

378

 

513

591

 

801

 

 

 

782

 

1060

1410

 

1912

 

 

 

 

 

 

 

 

 

 

 

 

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

Metric Standard Hardware

Grade

Shank Size (Diameter in millimeters, fine or coarse thread)

ft./lbs

M4

M5

M6

M7

M8

M10

M12

M14

M16

M18

M20

M22

M24

M27

Grade 8.8

 

Grade 10.9

Grade 12.9

 

 

 

 

 

 

ft./lbs

 

Nm

ft./lbs

Nm

ft./lbs

Nm

1.5

 

2

2.2

3

2.7

3.6

3

 

4

4.5

6

5.2

7

5.2

 

7

7.5

10

8.2

11

8.2

 

11

12

16

15

20

13.5

 

18

18.8

25

21.8

29

24

 

32

35.2

47

43.5

58

43.5

 

58

62.2

83

75

100

70.5

 

94

100

133

119

159

108

 

144

147

196

176

235

142

 

190

202

269

242

323

195

 

260

275

366

330

440

276

 

368

390

520

471

628

353

 

470

498

664

596

794

530

 

707

474

996

904

1205

 

 

 

 

 

 

 

51

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Dixon 966985401, 966985402 manual Technical Data, Torque Specifications, Standard Hardware