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![DIN 7991 Śruby z łbem stożkowym z gniazdem sześciokątnym v2]()
![DIN 7991 Śruby z łbem stożkowym z gniazdem sześciokątnym]()
Hexagon socket countersunk head cap screws DIN 7991
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| STANDARD | MATERIAL | CLASS | COATING |
|---|---|---|---|
| DIN 7991 | steel A2 A4 | 8.8 10.9 | galvanized zinc |
| d | M3 | M4 | M5 | M6 | M8 | M10 |
|---|---|---|---|---|---|---|
| dk | 6,72 | 8,96 | 10,2 | 13,44 | 17,92 | 22,4 |
| kmax | 1,86 | 2,48 | 3,1 | 3,72 | 4,96 | 6,2 |
| s | 2 | 2,5 | 3 | 4 | 5 | 6 |
| a | 90° | 90° | 90° | 90° | 90° | 90° |
| b | 18 | 20 | 22 | 24 | 28 | 32 |
| d | M12 | M14 | M16 | M20 | M22 | M24 |
|---|---|---|---|---|---|---|
| dk | 26,8 | 30,88 | 33,6 | 40,32 | 36 | 39 |
| kmax | 7,44 | 8,4 | 8,8 | 10,16 | 13,1 | 14 |
| s | 8 | 10 | 10 | 12 | 14 | 14 |
| a | 90° | 90° | 90° | 90° | 90° | 90° |
| b | 36 | 40 | 44 | 52 | 56 | 60 |