Countersunk screw with hexalobular head ISO 14581, zinc plated 8.8 steel, thick-layer passivation with sealing (ZSML) - SCR-CS-ISO14581-08.8-(ZSML)-M8X25

Countersunk screw with hexalobular head ISO 14581, zinc plated 8.8 steel, thick-layer passivation with sealing (ZSML)

Name: Countersunk screw with hexalobular head ISO 14581, zinc plated 8.8 steel, thick-layer passivation with sealing (ZSML)
Brand: Würth
SKU: 401208 25

SCR-CS-ISO14581-08.8-(ZSML)-M8X25

Art.-no. 401208 25

EAN 4057709266479

All versions

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Price for selected packaging unit

Countersunk screw with hexalobular head ISO 14581, zinc plated 8.8 steel, thick-layer passivation with sealing (ZSML)

Art.-no. 401208 25

Price for selected packaging unit

Quantity

x 200 pcs

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Connection elements 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 chromium(III) basis and a 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

Head dimensions in ISO 14581 countersunk screws are gauged in accordance with ISO 7721

Some screws with short dimensions are threaded up to the head, see ISO 14581

Countersinks for screw heads in accordance with ISO 14581 must comply with ISO 15065

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents


Thread type x nominal diameter (d₁)	M8
Length (l₁)	25 mm
Head diameter (d_k )	15.80 mm
Head height (k₁)	4.65 mm
Standards	ISO 14581
Material	Steel
Property class	08.8
Surface	Zinc plated thick-layer passivation
RoHS-compliant	Yes
Corrosion protection period (3)	192 h
Head type	Countersunk head
Drive type	Internal hexalobular
Internal drive	TX45
Thread type	Metric thread
Pitch	1.25 mm
Thread form	Standard metric thread
Thread design	Full thread
Product class	A
Tightening torque 90% yield strength (1)	26 Nm
Min./max. resulting pre-load force (2)	7.5-14.9 kN
Disc with hardness to be used	≥ 200 HV
Nut to be used with strength class	≥ I8I

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The packaging unit defines the number of articles in one packaging. In the catalog segment you can choose from different packaging units if a pop-up menu is displayed.

Just leave the field empty if you don't know the packaging unit when directly entering the article number in the shopping basket or when importing with v

The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
VVVVAAABBB
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
VVVVAAABBB
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:
VVVVAAABBB
04076

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