Würth UAE Contact +971 50 858 2034 | Free delivery on orders above 200 AED

Flat-head screw with H cross recess ISO 7045, steel 4.8, zinc-nickel, black (ZNBHL)

ISO 7045 steel 4.8 zinc nickel black H
SCR-PAN-ISO7045-4.8-(ZNBHL)-H2-M4X25

Art.-no. 51038425
EAN 4057709664206

Prices for customers after login

Exclusively for trade customers

Register now and access more than 125,000 products

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 hrs to base metal corrosion in accordance with DIN EN ISO 9227 NSS

  • Chromium(VI)-free

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

  • Thermal capacity up to 120°C

  • Even coat distribution

  • Functional and decorative
NoticeISO 7045 replaces DIN 7985 | There is some similarity | some head heights and head diameters changed | thread lengths changed | penetration depths of recessed heads changed | standard title of Pan-head screw changed to flat head screw
Product information

Datasheets(X)

Certificates/ Documents

 | 

 | 

Thread type x nominal diameter (d1)

M4

Length (l1)

25 mm

Head diameter (dk)

8 mm

Head height (k1)

3.1 mm

Standards

ISO 7045

Material

Steel

Property class

4.8

Surface

Zinc nickel black

RoHS-compliant

Yes

Head type

Pan head

Drive type

Crosshead

Internal drive

H2

Thread type

Metric thread

Pitch

0.7 mm

Thread form

Standard metric thread

Product class

A

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

 | 

 | 

Technical information