ISO metric socket cap screws Dimensions in Table

These screws are distinguished by square knurling on the heads. Generally, the lengths of standard screws increase in increments of 5 mm and 10 mm, but the exact range should be checked from the manufacturers catalogue.

Screw Engineering Drawing
Fig. 16.4 ISO metric hexagon socket shoulder screws. Dimensions in Table 16.3
Table 16.2

Nominal size D

M3

M4

M5

M6

M8

M10

M12

M16

M20

Head diameter A

5.5

7

8.5

10

13

16

18

24

30

Head depth H

3

4

5

6

8

10

12

16

20

Key engagement K

1.3

2

2.7

3.3

4.3

5.5

6.6

8.8

10.7

Socket size J

2.5

3

4

5

6

8

10

14

17

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  • Gianfranco Lorenzo
    How to draw cap scrws?
    8 years ago

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