Machine screw nuts

A range of machine screw nuts is covered by BS EN ISO 1580 and BS EN ISO 7045 and these nuts are manufactured in two different patterns, square and hexagon. The table shows typical nuts for use with the screws previously described.

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V,

m

Fig. 18 Square nut

Table 16.12 Machine screw nuts, pressed type, square and hexagonal

Nominal size Width across Width across corners e Thickness of nut d flats s m

Square Hexagon

Screw Nut Drawing

Fig. 16.19 Hexagon nut

Wing Nut Orthographic View

Small rad in corner

Alternative wing shape

Thread size

Fig. 16.20 (Sizes are in Table 16.13) Table 16.13

Thread size

Fig. 16.20 (Sizes are in Table 16.13) Table 16.13

Small rad in corner

Alternative wing shape

Table 16.12 Machine screw nuts, pressed type, square and hexagonal

Thread size

A

B

C

D

E

F

G

H

J

M2

4.0

5.7

4.6

1.2

M2.5

5.0

7.1

5.8

1.6

M3

9

6.5

7

13.5

22

19

3.5

2.5

1.5

M3

5.5

7.8

6.4

1.6

M3.5

6.0

8.5

6.9

2.0

M4 and M5

10

8

9

15

25.5

19

4

2.5

1.5

M4

7.0

9.9

8.1

2.0

M5

8.0

11.3

9.2

2.5

M6

13

9.5

11

18

30

19

5

2.5

1.5

M6

10.0

14.1

11.5

3.0

6.5

2.5

M8

13.0

18.4

15.0

4.0

M8

16

12

13

23

38

19

3

M10

17.0

24.0

19.6

5.0

M10

17.5

14

14

25.5

44.5

19

7

5

3

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