Countersunk head screw with hexagon socket ISO 10642, steel, strength class 10.9, zinc flake, silver (ZFSHL)

Name: Countersunk head screw with hexagon socket ISO 10642, steel, strength class 10.9, zinc flake, silver (ZFSHL)
Brand: Würth
SKU: 412341240

ISO 10642 steel 010.9, zinc-flake
SCR-CS-ISO10642-010.9-(ZFSHL)-M12X40

Art.-no. 412341240

EAN 4056807152950

All versions

Specification

Zinc-flake coatings are chrome (VI)-free corrosion protection coatings for commercial vehicle construction, construction machines, agricultural vehicles and equipment, and all other fields that require vehicle construction standard corrosion protection requirements.

Corrosion resistance for ZFSHL is:

Diameter ≥ M6 - 480h*

Diameter ≥ M10 - 720h*

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

The designation ZFSHL refers to the following corrosion coating:

Zinc-flake coating, with top coat, silver colour, with friction value adjusted lubrication.

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

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

Technical information


Thread type x nominal diameter (d₁)	M12
Length (l₁)	40 mm
Head diameter (d_k)	24.81 mm
Head height (k₁)	7.44 mm
Internal drive (s₁)	HS8
Standards	ISO 10642
Material	Steel
Property class	010.9
Surface	Flake zinc silver
Corrosion protection period	720 h
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