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-HS2,5-(A2K)-M4X50
Art.-no. 008904 50
EAN 4045727120668
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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
Datasheets(X)
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Thread type x nominal diameter (d1)  | M4  | 
Length (l1)  | 50 mm  | 
Head diameter (dk)  | 7.96 mm  | 
Head height (k1)  | 2.48 mm  | 
Internal drive (s1)  | HS2.5  | 
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  | Partial thread  | 
Product class  | A  | 
