Countersunk screw with hexagon socket head
DIN 7991 steel 08.8, plain
SCR-CS-DIN7991-08.8-HS2,5-M4X25
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Manufactured in accordance with DIN 7991. DIN 7991 has been withdrawn and replaced by ISO 10642. There is some limited similarity. (Some head heights and head diameters changed | nominal diameter M18, M22, M24) For new designs, it is recommended to use the more common ISO version.
Countersinking angle:
M3 - M20: 90°
M22 and M24: 60°
Due to their head geometry, these screws can only be subjected to limited loads, see DIN EN ISO 898-1
Datasheets(X)
Thread type x nominal diameter (d1) | M4 |
Length (l1) | 25 mm |
Head diameter (dk) | 8 mm |
Head height (k1) | 2.3 mm |
Internal drive (s1) | HS2.5 |
Standards | DIN 7991 |
Material | Steel |
Property class | 08.8 |
Surface | Plain |
RoHS-compliant | Yes |
Head type | Countersunk head |
Drive type | Hexagon socket |
Thread type | Metric thread |
Thread form | Standard metric thread |
Product class | A |
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