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 Nut

5/16” Bolt or Nut

3/8” Bolt or Nut

7/16” Bolt or Nut

1/2” Bolt or Nut

Wrench—7/16”

Wrench—1/2”

Wrench—9/16”

Wrench (Bolt)—5/8”

Wrench—3/4”

 

 

 

Wrench (Nut)—11/16”

 

PTS - 6

Page 28
Image 28
Hayter Mowers 407F manual Torque Specification Chart, Wrench & Fastener Size Guide

407F specifications

The Hayter Mowers 407F stands as a prime example of engineering excellence in the world of lawn care, combining innovative technology with user-friendly features to deliver an exceptional mowing experience.

One of the standout characteristics of the 407F is its powerful engine. Equipped with a robust four-stroke engine, it provides ample torque and efficiency, ensuring that even the most demanding mowing tasks can be tackled with ease. This reliable power source not only guarantees a clean cut but also enhances the mower's longevity.

The 407F features a 17-inch cutting deck, designed to deliver precision cuts on various grass types. This size strikes a perfect balance, making it suitable for both small and medium-sized lawns. The cutting height can be easily adjusted, ranging from 25mm to 70mm, which allows users to achieve their desired grass length with minimal effort.

Equipped with a high-quality steel chassis, the 407F is designed for durability and stability. It is built to withstand the rigors of regular use while ensuring a steady operation across diverse terrains. The lightweight design further enhances maneuverability, making it easy to navigate around flower beds and other obstacles.

One of the most impressive innovations is the inclusion of Hayter's signature Vari-Speed system. This technology allows users to seamlessly adjust the mowing speed, which not only matches their walking pace but also eases the strain on the user, enabling longer periods of efficient mowing without fatigue.

The 407F also comes with a reliable grass collection system that maximizes efficiency by ensuring minimal grass clippings are left behind. The generous grass bag capacity means less time spent emptying, allowing for uninterrupted mowing sessions.

User comfort is a key focus with the 407F. Comfortable handles with an ergonomic design provide a solid grip and reduce vibration, making it more pleasant to operate. Additionally, it boasts a foldable handle that allows for compact storage and easy transport.

To sum up, the Hayter Mowers 407F is not just a traditional mower; it integrates advanced technology and thoughtful design features that cater to modern lawn care needs. With its powerful engine, versatile cutting options, durable construction, and user-focused features, it is well-suited for gardeners who demand quality and performance in their lawn maintenance equipment. The Hayter 407F truly represents a harmonious blend of tradition and innovation in landscaping.