Hexagonal bolt with flange in accordance with MBN standard - SCR-HEX-MBN10105-(DBL)-10.9-M8X25

Hexagonal bolt with flange in accordance with MBN standard

Name: Hexagonal bolt with flange in accordance with MBN standard
Brand: Würth
SKU: 026318 25

MBN 10105 steel 10.9 flake zinc
SCR-HEX-MBN10105-(DBL)-10.9-M8X25

Art.-no. 026318 25

EAN 4047376211438

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Hexagonal bolt with flange in accordance with MBN standard

Art.-no. 026318 25

Prices for customers after login

Quantity

x 200 pcs

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MBN 10105, steel, strength class 10.9, from M12 with fine thread. Silver zinc-flake coating in accordance with DBL 9440.40 (shape C ≙ partial thread)

Surface protection

In accordance with DBL 9440.40 (silver zinc-flake coating with lubrication integrated in sealing, Cr(VI)-free) > VDA 235-104.42

Corrosion resistance

≤ M8 - approx. 480 h, no base metal corrosion in accordance with DIN EN ISO 9227-NSS

≥ M10 - approx. 720 h, no base metal corrosion in accordance with DIN EN ISO 9227-NSS

The specified corrosion resistances apply for the corrosion tests according to DIN EN ISO 9227-NSS (salt spray tests), at the earliest 24 h after coating in the "as coated" state, i.e. before sorting, packaging, transporting and/or assembly. These values can be reduced through inevitable handling and assembly processes.

A transfer of the corrosion resistances from the salt spray test to real assembly and operating conditions is not possible in the majority of cases. When designing a connection both the combined materials and if necessary coatings as well as the environmental conditions during operation must be considered by the designer in the selection of a suitable corrosion protection coating.

Friction coefficient

μ_tot = 0.09-0.14 (VDA 235-101)

Notice

Flange head screws reduce the risk of pretension loss caused by setting of contact surfaces. The surface pressure generated under the screw head during tightening is low compared to conventional hexagon heads (without flange), as the force is distributed over a larger contact surface.

Advantage:

Less setting required due to fewer parts to be connected compared to connections using washers.

The concave washer pressing against the contact surface increases the elasticity of the connection so that the setting/creeping movements that occur are counteracted and pretension loss is generally prevented

Matching nuts

Hexagon nut with flange and clamping piece MBN 13032 Steel 10, zinc flake coating, item number: 026391...

Product information

Würth Catalogue

Datasheets(X)

CAD data (available after login)

Certificates/ Documents


Thread type x nominal diameter x pitch (d₁)	M8 x 1.25
Length (l₁)	25 mm
Head diameter (d_c)	17.9 mm
Head height (k₁)	8.1 mm
External drive (s₁)	WS13
Pitch	1.25 mm
Standards	MBN 10105
Material	Steel
Property class	10.9
Surface	Flake zinc silver
RoHS-compliant	Yes
Corrosion protection period	480 h
Head type	Hexagon head with flange
Drive type	Outer hexagon
Thread type	Metric thread
Thread form	Standard metric thread
Thread design	Full thread
Product class	A
Area of application	Utility vehicle construction

Additional accessory:

Product

Description

Quantity

Price
/PU

Hexagonal nut with flange and clamping piece (all-metal) according to MBN standard

NUT-HEX-FLG-MBN13023-(DBL)-10-M8

Art.-no. 026391 8

MBN 13023, type 2, steel 10, from M12 with fine thread. Silver zinc-flake coating in accordance with DBL 9440.40

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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)
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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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