Knurled screws DIN 653-A galvanized steel blue

Catalog no.: 8266
27 variants
  • Material: Free cutting steel

    Free-cutting steels are described in ISO 683-4. A distinction is made between grades not intended for heat treatment, those intended for case hardening, and free-cutting steels intended for tempering. All steels in accordance with ISO 683-4 are easily machinable (turning, drilling, milling) due to their chip-breaking properties. Tensile strengths range from 310 to 900 MPa, depending on the heat treatment.

  • Surface: zinc plated blue

    Blue galvanised finishes are produced either by electroplating in accordance with DIN EN ISO 4042 or by mechanical plating in accordance with DIN EN ISO 12683. For fasteners with a hardness exceeding 390 HV, there is a risk of hydrogen embrittlement during galvanising (electrolytic process). This necessitates specific measures (such as annealing), although these do not provide a 100 per cent guarantee against embrittlement.

  • Thread type: Metric standard thread
  • Head shape: Flat head
  • Norm DIN: 653
Filter

Select pick-up location

Sign in

Are you a new customer?

Login

Your contact person

Set commission

Your customer card

Please present the QR code at the checkout.
Retrieved on 
To shopping cart