Screw with flattened half round head with collar and hexagon socket ISO 7380-2, zinc plated 10.9 steel with thick-layer passivation (ZSML) - SCR-RSD-ISO7380/2-010.9-(ZSML)-M4X30

Screw with flattened half round head with collar and hexagon socket ISO 7380-2, zinc plated 10.9 steel with thick-layer passivation (ZSML)

Name: Screw with flattened half round head with collar and hexagon socket ISO 7380-2, zinc plated 10.9 steel with thick-layer passivation (ZSML)
Brand: Würth
SKU: 425304 30

SCR-RSD-ISO7380/2-010.9-(ZSML)-M4X30

Art.-no. 425304 30

EAN 4062855067962

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Screw with flattened half round head with collar and hexagon socket ISO 7380-2, zinc plated 10.9 steel with thick-layer passivation (ZSML)

Art.-no. 425304 30

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Quantity

x 500 pcs

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Fasteners with zinc-plated chromium(VI)-free thick-film passivation (ZSML) offer a future-proof alternative compared to surfaces containing chromium(VI). The coating consists of a zinc layer with passivation on a (chrome III) basis and sealing coat (top coat with integrated lubricating particles).

Overview of advantages:

Higher quality replacement for common zinc-plated coatings such as A2C or A3C

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

Due to their head geometry, these screws can only be subjected to limited loads, see DIN EN ISO 898-1

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents


Thread type x nominal diameter (d₁)	M4
Length (l₁)	30 mm
Head diameter (d_c)	7.2 mm
Head height (k₁)	2.20 mm
Internal drive	HS2.5
Standards	ISO 7380-2
Material	Steel
Property class	010.9
Surface	Zinc plated thick-layer passivation
Head type	Button head with collar
Head details	With collar
Drive type	Hexagon socket
Thread type	Metric thread
Thread form	Standard metric thread
Product class	A
RoHS-compliant	Yes
Tightening torque 90% yield strength (1)	3.8 Nm
Min./max. resulting pre-load force (2)	2.5-5 kN
Corrosion protection period (3)	192 h
Disc with hardness to be used	≥ 300 HV
Nut to be used with strength class	≥ I10I

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