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Torque Specifications

The following chart depicts the torque specifications for all screws and nuts used in the machine. They should be followed unless indicated otherwise in this manual (i.e., screws going into plastic materials require lower torque).

Note: Reduce torque specifications when attaching optical sensors by 10% to prevent damage to the sensor housing. Use minimum torque when screwing into or clamping plastic surfaces.

Size

Min

Max

 

Min

Max

 

In⋅lb

In⋅lb

 

N⋅m

N⋅m

Zn Plated, Property Class 8.8, Socket Head Screws (PN: 010170-XX, 010171-XX, 010172-XX, 010174- XX, 010175-XX)

M2.5

5

7

 

0.66

0.80

M3

10

13

 

1.2

1.4

M4

23

26

 

2.6

32.2

M5

46

56

 

5.1

6.3

M6

79

96

 

8.9

10.9

M8

190

234

 

21.6

26.4

Zn Plated, Property Class 4.5, Slotted and Phillips Machine Screws (PN: 006558-XX, 004262-XX,

009862-XX, 009863-XX)

M2.5

1

2

 

0.19

0.23

M3

3

4

 

0.40

0.48

M4

8

10

 

0.92

1.12

M5

16

19

 

1.8

2.2

M6

27

33

 

3.1

3.7

M8

45

55

 

5.1

6.3

Black Oxide, Property Class 12.9, Black Socket Head Screws (PN: 01922-XX, 67018-XX, 671852-XX, 671686-XX, 671687-XX, 003183-XX)

M2.5

10

12

 

1.2

1.4

M3

18

22

 

2.1

2.5

M4

43

51

 

4.7

5.8

M5

83

100

 

9.4

11.4

M6

144

175

 

16.2

19.8

M8

345

418

 

38.7

47.3

Set Screws, Property Class 45H (PN: 10188, 01962-XX, 005034-XX, 001960-XX, 10635-XX, 001971-XX)

M3

4

5

 

0.45

0.55

M4

8

10

 

0.90

1.10

M5

24

29

 

2.7

3.3

M6

40

48

 

4.5

5.5

M8

80

97

 

9

11

Zn Plated, Property Class 8.8, Low Profile Socket Head Screws (PN: 30750-XX)

M4

23

28

 

2.61

3.19

Black Oxide, Property Class 10.9, Flat Head Socket Screws (PN: 001935-XX, 007443-XX)

M3

15

19

 

1.73

2.11

Zn Plated, Property Class 10.9, Flat Head Socket Screws (PN: 011197-XX, 011198-XX)

M4

34

40

 

3.77

4.61

M5

65

78

 

7.29

8.91

Zn Plated, Property Class 12.9, Flanged Socket Head Screws (PN: 30790-XX)

M4

40

48

 

4.45

5.45

Stainless Steel, Property Class 10.9, Button Head Cap Screws (PN: 011161-XX, 011162-XX, 011163-XX)

M3

15

19

 

1.73

2.11

M4

34

40

 

3.77

4.61

M5

65

78

 

7.29

8.91

Zn Plated, Property Class 04, Metric Hex Nuts (PN: 680430-XX) (Torque based on screws they attach to)

M4

23

28

 

2.6

3.2

M5

46

56

 

5.2

6.3

Machine Specific and Custom Hardware

Self Tapping Plastic DURO Screw (PN: 30737-01)

8

10

 

0.9

1.10

M6 Lock Nut (PN: 005284-01)

Install nut until it makes contact with the spring washer, then turn nut another half turn.

M4x0.7 Nylock Nut (PN: 003573-04)

No torque specification for this nut. Turn nut until specified belt tension is achieved.

 

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