Hexalobular-type cheese head screw, low head - SCR-CYL-ISO14580-8.8-TX20-(ZNBHL)-M4X20

Hexalobular-type cheese head screw, low head

Name: Hexalobular-type cheese head screw, low head
Brand: Würth
SKU: 400064 20

ISO 14580 steel 8.8, zinc-nickel, black
SCR-CYL-ISO14580-8.8-TX20-(ZNBHL)-M4X20

Art.-no. 400064 20

EAN 4053479658865

All versions

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Hexalobular-type cheese head screw, low head

Art.-no. 400064 20

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Quantity

x 500 pcs

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Fasteners with a galvanised chromium (VI)-free zinc-nickel black coating (ZNBHL) are suitable for applications with a high risk of corrosion.

Decorative black finish

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 0.09μ - 0.14μ due to top coat with integrated lubricating particles

Thermal capacity up to 120°C

Even coating distribution

Functional and decorative

Notice

Increase in assembly productivity

When elements are joined using hexalobular (TX) fasteners, the force is transmitted over a large surface area across the flanks of the drive rather than being centred on one point, as is the case with hexagon socket drives, for example. This has a number of advantages:

Reduced tool wear

Tool does not slip because force is distributed optimally

No damage to surface coating

No wobbling

Screw locates securely

Hexalobular drives must comply with DIN EN ISO 10664

As a result, connection elements with hexalobular heads are standardised and can be used all over the world

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents


Thread type x nominal diameter (d₁)	M4
Length (l₁)	20 mm
Head diameter (d_k)	7 mm
Head height (k₁)	3.1 mm
Standards	ISO 14580
Material	Steel
Property class	8.8
Surface	Zinc nickel black
RoHS-compliant	Yes
Corrosion protection period	480 h
Head type	Socket low head
Drive type	Internal hexalobular
Internal drive	TX20
Thread type	Metric thread
Pitch	0.7 mm
Thread form	Standard metric thread
Thread design	Full thread
Thread length (metric thread)	20 mm
Product class	A

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