Simplicity 18HP Wrench & Fastener Size Guide, Hardware Identification & Torque Specifications

Page 63
Hardware Identification & Torque Specifications

Hardware Identification & Torque Specifications

Common Hardware Types

Hex Head Capscrew

Washer

 

 

Lockwasher

Carriage Bolt

 

 

Hex Nut

Standard Hardware Sizing

When a washer or nut is identified as 1/2”, this is the Nominal size, meaning the inside diameter is 1/2 inch; if a second number is present it represent the threads per inch

When bolt or capscrew is identified as 1/2 - 16 x 2”, this means the Nominal size, or body diameter is 1/2 inch; the second number represents the threads per inch (16 in this example, and the final number is the body length of the bolt or screw (in this example 2 inches long).

The guides and ruler furnished below are designed to help you select the appropriate hardware and tools.

0

 

1/4

Nut, 1/2”

1/2

Inside

Diameter

3/4

 

1

 

1/4

 

1/2

 

3/4

Screw, 1/2 x 2

2

Body

 

1/4

Diameter

 

1/2

Body

Length

3/4

 

3

 

1/4

 

1/2

 

3/4

 

4

 

Torque Specification Chart

FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%)

 

Hardware

 

No

 

 

 

 

 

 

 

 

Marks

 

 

 

 

 

 

 

 

Grade

SAE Grade 2

SAE Grade 5

SAE Grade 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Size Of

in/lbs

 

 

in/lbs

 

 

in/lbs

 

 

 

 

Hardware

ft/lbs

 

Nm.

ft/lbs

Nm.

ft/lbs

 

Nm.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-32

 

19

 

2.1

30

3.4

 

41

4.6

 

8-36

 

20

 

2.3

31

3.5

 

43

4.9

 

10-24

 

27

 

3.1

43

4.9

 

60

6.8

 

10-32

 

31

 

3.5

49

5.5

 

68

 

7.7

 

1/4-20

 

66

 

7.6

8

10.9

 

12

16.3

 

1/4-28

 

76

 

8.6

10

13.6

 

14

19.0

 

5/16-18

 

11

 

15.0

17

23.1

 

25

34.0

 

5/16-24

 

12

 

16.3

19

25.8

 

27

34.0

 

3/8-16

 

20

 

27.2

30

40.8

 

45

61.2

 

3/8-24

 

23

 

31.3

35

47.6

 

50

68.0

 

7/16-14

 

30

 

40.8

50

68.0

 

70

95.2

 

7/16-20

 

35

 

47.6

55

74.8

 

80

108.8

 

1/2-13

 

50

 

68.0

75

102.0

 

110

149.6

 

1/2-20

 

55

 

74.8

90

122.4

 

120

163.2

 

9/16-12

 

65

 

88.4

110

149.6

 

150

204.0

 

9/16-18

 

75

 

102.0

120

163.2

 

170

231.2

 

5/8-11

 

90

 

122.4

150

204.0

 

220

299.2

 

5/8-18

 

100

 

136

180

244.8

 

240

326.4

 

3/4-10

 

160

 

217.6

260

353.6

 

386

525.0

 

3/4-16

 

180

 

244.8

300

408.0

 

420

571.2

 

7/8-9

 

140

 

190.4

400

544.0

 

600

816.0

 

7/8-14

 

155

 

210.8

440

598.4

 

660

897.6

 

1-8

 

220

 

299.2

580

788.8

 

900

1,244.0

 

1-12

 

240

 

326.4

640

870.4

 

1,000

1,360.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTES

1.These torque values are to be used for all hardware excluding: locknuts, self-tapping screws, thread forming screws, sheet metal screws and socket head setscrews.

2.Recommended seating torque values for locknuts:

a.for prevailing torque locknuts - use 65% of grade 5 torques.

b.for flange whizlock nuts and screws - use 135% of grade 5 torques.

3.Unless otherwise noted on assembly drawings, all torque values must meet this specification.

Wrench & Fastener Size Guide

 

 

 

7/16

1/2

 

 

3/8

DIA.

1/4

5/16

DIA.

 

1/4” Bolt or Nut5/16” Bolt or Nut3/8” Bolt or Nut7/16” Bolt or Nut1/2” Bolt or Nut

Wrench—7/16”

Wrench—1/2”

Wrench—9/16”

Wrench (Bolt)—5/8”

Wrench—3/4”

 

 

 

Wrench (Nut)—11/16”

 

Image 63
Contents 22HP Product 18.5HP Product18HP Product 20HP ProductPage PRODUCT COMPONENTS Table Of ContentsInside Back Cover Torque Specification ChartTP 400-4275-02-RG-SMA Frame & Front Axle Group986847 The above parts group applies to the following Mfg. NosREF NO QTY. DESCRIPTIONFootnotes 986843 Steering GroupFootnotes 987056 Engine & Electric Clutch Group, 38Footnotes 986840 Engine & Electric Clutch Group, 44Footnotes 987060 Transmission GroupFootnotes 986842 Controls GroupFootnotes Starter conection At seat switch connectionElectrical Group 986851Footnotes Electrical GroupREF NO QTY. DESCRIPTION986851 At seat switch connectionuse the standard hardware torque specification chart Electrical GroupFootnotes 986844 Hood, Grille & Dash GroupFootnotes 987074 Seat Deck & Fuel Tank GroupFootnotes 986849 Lift Group - ManualFootnotes W986848 Wheels & Tires GroupFootnotes B986848 Decals Group - Brand & ModelFootnotes C986848 Decals Group - Safety & Common GroupFootnotes 987078 38 Mower Deck - Belt, Idler Arm & Hitch GroupFootnotes 987081 38 Mower Deck - Height Adjustment & Roller Bar GroupFootnotes 38 Mower Deck - Height Adjustment & Roller Bar GroupREF NO QTY. DESCRIPTIONThe above parts group applies to the following Mfg. Nos 38 Mower Deck - Height Adjustment & Roller Bar Groupuse the standard hardware torque specification chart 987081Footnotes 987075 38 Mower Deck - Housing, Arbors & Blades GroupFootnotes 987297 40 Mower Deck - Belt, Idler Arm & Hitch GroupFootnotes 987287 40 Mower Deck - Height Adjustment & Roller Bar GroupFootnotes 40 Mower Deck - Height Adjustment & Roller Bar GroupREF NO QTY. DESCRIPTIONThe above parts group applies to the following Mfg. Nos 40 Mower Deck - Height Adjustment & Roller Bar Groupuse the standard hardware torque specification chart 987287Footnotes 987296 40 Mower Deck - Housing, Arbors & Blades GroupFootnotes 987079 44 & 50 Mower Deck - Belt, Idler Arm & Hitch GroupFootnotes 987082 44 Mower Deck - Height Adjustment & Roller Bar GroupFootnotes 44 Mower Deck - Height Adjustment & Roller Bar GroupREF NO QTY. DESCRIPTIONThe above parts group applies to the following Mfg. Nos 44 Mower Deck - Height Adjustment & Roller Bar Groupuse the standard hardware torque specification chart 987082Footnotes 987076 44 Mower Deck - Housing, Arbors & Blades GroupFootnotes 987083 50 Mower Deck - Height Adjustment & Roller Bar GroupFootnotes 50 Mower Deck - Height Adjustment & Roller Bar GroupREF NO QTY. DESCRIPTIONThe above parts group applies to the following Mfg. Nos 50 Mower Deck - Height Adjustment & Roller Bar Groupuse the standard hardware torque specification chart 987083Footnotes 987077 50 Mower Deck - Housing, Arbors & Blades GroupFootnotes 50 Mower Deck - Housing, Arbors & Blades GroupREF NO QTY. DESCRIPTIONPage Nut, 1/2” Wrench & Fastener Size GuideHardware Identification & Torque Specifications Torque Specification ChartAll Rights Reserved. Printed In USA MANUFACTURING, INC500 N. Spring Street / PO Box Port Washington, WI 53074-0997 USA