DIN 603 — Mushroom head square neck bolts
DIN 603
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Illustration from the company CAD library
Bolt with a round head and a square neck beneath it.
Shape illustration only; not confirmation of dimensional or standard conformity. Changing the table size does not change this model.
Dimensions
| d1 | d2 maxmm | k maxmm | f maxmm | b to 125mm | b to 200mm | b over 200mm |
|---|---|---|---|---|---|---|
| M5 | 13.55 | 3.3 | 4.1 | 16 | - | - |
| M6 | 16.55 | 3.88 | 4.6 | 18 | 24 | - |
| M8 | 20.65 | 4.88 | 5.6 | 22 | 28 | - |
| M10 | 24.65 | 5.38 | 6.6 | 26 | 32 | 45 |
| M12 | 30.65 | 6.95 | 8.75 | 30 | 36 | 49 |
| M16 | 38.8 | 8.95 | 12.9 | 38 | 44 | 57 |
| M20 | 46.8 | 11.05 | 15.9 | - | - | 46 |
Column symbols and explicit max qualifiers apply as displayed.
דרגת חוזק, ציפוי ומהדורת התקן אינם מצוינים במקור זה.
Strength class, finish and standard edition are not stated on this sheet.
Property class, coating and standard edition are not stated. No stock or standard equivalence is inferred.
Thread length b follows the length bands: up to 125, over 125 through 200, and over 200 mm. Dashes are retained and are not zero values. The nut shown here drawing is illustrative; no nut supply is implied.
Sheet revision 04 · 2026-09-16
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