Welcome to Würth Aerospace Solutions For trade customers only

Raised countersunk head screw with recessed head, H ISO 7047, steel 4.8, zinc-nickel, black (ZNBHL)

ISO 7047 steel 4.8 zinc nickel black
SCR-ISO7047-4.8-H2-(ZNBHL)-M4X20

Art.-no. 51072420
EAN 4057709537210

Prices for customers after login
Raised countersunk head screw with recessed head, H ISO 7047, steel 4.8, zinc-nickel, black (ZNBHL)

Art.-no. 51072420

Prices for customers after login
Quantity
PU
x 500 pcs

Exclusively for trade customers

Register now and access more than 125,000 products

Connection elements with a galvanised chrome (VI)-free zinc-nickel coating (ZNBHL black or ZNSHL silver) are suitable for applications with a high risk of corrosion. The coating comprises a zinc-nickel alloy layer and a seal (top coat with integrated lubricating particles).



Overview of advantages:



  • Corrosion resistance of up to 720 hrs to base metal corrosion in accordance with DIN EN ISO 9227 NSS

  • Adjusted friction coefficient range from 0.09μ – 0.14μ due to top coat with integrated lubricating particles
  • Thermal capacity up to 120 °C

  • Even coat distribution

  • Functional and decorative

Notice

ISO 7047 replaces DIN 966 | There is some limited similarity | Some head heights and head diameters have been changed | Thread lengths changed | Strength class 5.8 and 8.8 omitted | Recessed head penetration depths changed.

Product information

Datasheets(X)

Certificates/ Documents

 | 

 | 

Thread type x nominal diameter (d1)

M4

Length (l1)

20 mm

Head diameter (dk)

8.4 mm

Head height (k1)

2.7 mm

Standards

ISO 7047

Material

Steel

Property class

4.8

Surface

Zinc nickel black

RoHS-compliant

Yes

Head type

Raised countersunk 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