DIN 603 — Mushroom head square neck bolts
Data sheet · Revision 04 · 2026-09-16
Dimensions
| d1 | d2 max max (mm) | k max max (mm) | f max max (mm) | b to 125 (mm) | b to 200 (mm) | b over 200 (mm) |
|---|---|---|---|---|---|---|
| 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.
Notes
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.