Countersunk screw with hexagon socket, galvanised ISO 10642, steel 10.9, zinc-plated, blue passivated (A2K)
DIN 7991/ISO 10642 steel 010.9 zinc plated
SCR-ISO10642-010.9-HS5-(A2K)-M8X20
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ISO 10642 replaces DIN 7991 | There is some limited similarity (some head heights and head diameters have been changed | nominal Ø M18, M22, M24 are omitted | Stainless steels removed | strength classes 10.9 and 12.9 added).
These screws can only be subjected to limited loads due to their head geometry, see DIN EN ISO 898-1
 | |
Thread type x nominal diameter (d1) | M8 |
Length (l1) | 20 mm |
Head diameter (dk) | 16.43 mm |
Head height (k1) | 4.96 mm |
Internal drive (s1) | HS5 |
Standards | ISO 10642 |
Material | Steel |
Property class | 010.9 |
Surface | Zinc plated |
RoHS-compliant | Yes |
Head type | Countersunk head |
Drive type | Hexagon socket |
Thread type | Metric thread |
Thread form | Standard metric thread |
Thread design | Full thread |
Product class | A |
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