Hexagon screw, countersunk head
ISO 10642, zinc plated steel 08.8, ZP
ISO 10642 08.8 A2K M8X20
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ISO 10642 replaces DIN 7991 | There are some limited consistencies (some screw head heights and diameters have been amended | the M18, M22, and M24 nominal diameters have been removed | stainless steels have been removed | strength classes 10.9 and 12.9 have been added).
Due to the shape of their head, the countersunk screws have reduced loadability according to this standard.
Datasheets(X)
 | |
Thread type x nominal diameter (d) | M8 |
Length (l) | 20 mm |
Head diameter (d) | 17.92 mm |
Head height (k) | 4.96 mm |
Standards | ISO 10642 |
Material | Steel |
Property class | 08.8 |
Surface | Zinc plated |
RoHS-compliant | Yes |
Head type | Countersunk head |
Head details | 0 - not applicable |
Drive type | Hexagon socket |
Internal drive | HS5 |
Thread type | Metric thread |
Pitch | 1.25 mm |
Thread form | Standard metric thread |
Thread design | Full thread |
Design | 0 - not applicable |
Product class | A |
Area of application | 0 - not applicable |
Regulated area | 0 - not applicable |
Construction product | 0 - not applicable |
EC declaration of conformity (CE) | 0 - not applicable |
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