Countersunk screw with hexagon socket head

Name: Countersunk screw with hexagon socket head
Brand: Würth
SKU: 412266 25

ISO 10642 steel 08.8, zinc-nickel, black
SCR-CS-ISO10642-08.8-(ZNBHL)-M6X25

Art.-no. 412266 25

EAN 4060052250958

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Countersunk screw with hexagon socket head

Art.-no. 412266 25

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x 500 pcs

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ISO 10642, steel strength class 8.8, zinc-nickel-plated, black (ZNBHL)

Fasteners with a zinc-plated chromium (VI)-free zinc-nickel black coating (ZNBHL) are suitable for applications with a high risk of corrosion. The coating comprises a zinc-nickel alloy layer and a sealing coat (top coat with integrated lubricating particles).

Corrosion resistance:

Diameter ≥ M2–360h*

Diameter ≥ M4–480h*

Diameter ≥ M10–720h*

*No base metal corrosion at points without thread in salt spray mist testing according to DIN EN ISO 9227 NSS

Overview of advantages:

Corrosion resistance of up to 720 hours against base metal corrosion in accordance with DIN EN ISO 9227 NSS

Chromium(VI)-free

Adjusted friction coefficient range from 0.09 μ-0.14 μ due to top coat with integrated lubricating particles

Thermal capacity up to 120°C

Even coating distribution

Functional and decorative

Notice

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

Product information

Würth Catalogue

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Certificates/ Documents


Length (l₁)	25 mm
Head diameter (d_k)	13.44 mm
Head height (k₁)	3.72 mm
Internal drive (s₁)	HS4
Material	Steel
Property class	08.8
Surface	Zinc nickel black
Drive type	Hexagon socket
Thread form	Standard metric thread