Drawing nuts and bolts

It is often necessary to draw nuts and bolts and a quick easy method is required to produce a satisfactory result.

S rg

>1

Height of bolt head

i 1 ) o

face

Df

vjfi

M1.6

0.35

1.1

3.5

3.0

1.0

1.25

1.7

4.0

0.3

M2

0.4

1.4

4.5

4.0

1.5

1.5

2.2

5.0

0.3

M2.5

0.45

1.9

5.5

5.0

1.75

2.0

2.7

6.5

0.5

M3

0.5

2.3

6.0

5.5

5.0

2.0

2.25

3.2

7.0

0.5

M4

0.7

3.0

8.0

7.0

6.5

2.75

3.0

4.3

9.0

0.8

M5

0.8

3.9

9.0

8.0

7.5

3.5

4.0

5.3

10.0

1.0

M6

1.0

4.7

11.5

10.0

9.0

4.0

5.0

6.4

12.5

1.6

0.8

M8

1.25

6.4

15.0

13.0

12.0

5.5

6.5

5.0

8.4

17

1.6

1.0

M10

1.5

8.1

19.5

17.0

16.0

7.0

8.0

6.0

10.5

21

2.0

1.25

M12

1.75

9.7

21.5

19.0

18.0

8.0

10.0

7.0

13.0

24

2.5

1.6

M16

2.0

13.5

27.0

24.0

23.0

10.0

13.0

8.0

17.0

30

3.0

2.0

M20

2.5

16.7

34.0

30.0

29.0

13.0

16.0

9.0

21.0

37

3.0

2.0

M24

3.0

20.0

41.5

36.0

34.5

15.0

19.0

10.0

25.0

44

4.0

2.5

M30

3.5

25.5

52.0

46.0

44.5

19.0

24.0

12.0

31.0

56

4.0

2.5

M36

4.0

31.0

62.5

55.0

53.5

23.0

29.0

14.0

37.0

66

5.0

3.0

KiS

A/F

\

f----

-5

N

H

Hexagon head washer faced

Hexagon head washer faced

Nuts Bolts Washers Mechanical Drawing

(c) Bright washers

Rolled thread end (a) Hexagon head precision bolts

(c) Bright washers

Form A

Form B

Nuts And Bolts Drawings

(b) Precision nuts and thin nuts

/

\

V

J

(

\

\

/

r

N

\

/

T

Engineering Drawing Nut
Chamfer optional

(b) Precision nuts and thin nuts

Fig. 16.1 Proportions of bolts, nuts and washers. A/C means across corners. A/F means across flats.

Nuts and bolts are not normally drawn on detail drawings unless they are of a special type. They are shown on assembly drawings and, provided they are standard stock sizes, are called up in parts lists and schedules. A description of the head, the thread and the length being generally sufficient. Templates are available for drawing nuts and bolts and can be recommended for their time saving advantages.

It is conventional drawing practice to show, as first choice, nuts and bolts in the across corners position if a single view only is illustrated since this is instantly recognizable.

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Responses

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