DIN 908 | steel | zinc-plated, thick-film passivated (VZD) | Cr(VI) - free | cylindrical pipe thread
Surface (VZD): galvanized, thick-film passivated, min. 5µm | corrosion resistance to DIN EN ISO 9227*: white rust 72h, red rust 144h | defined coefficient of friction µ(total) = 0.12 - 0.18 for elements with a nominal tensile strength ≥ 800 MPa
*The verification of the mentioned minimum requirements is carried out according to the test conditions of DIN EN ISO 4042, galvanic coatings for fasteners. For dimensions < M5, the above values may deviate downwards.
Surface (VZD): galvanized, thick-film passivated, min. 5µm | corrosion resistance to DIN EN ISO 9227*: white rust 72h, red rust 144h | defined coefficient of friction µ(total) = 0.12 - 0.18 for elements with a nominal tensile strength ≥ 800 MPa
*The verification of the mentioned minimum requirements is carried out according to the test conditions of DIN EN ISO 4042, galvanic coatings for fasteners. For dimensions < M5, the above values may deviate downwards.
Flange/washer:
without flange
Risk hydrogen embrittlement:
Material:
Steel
Installation method:
Screw into place with tool
Surface:
zinc-plated, thick-film passivated (VZD)
Product type:
Cap screw with internal driving feature
Product group:
Screws
Material:
Steel
The Manual of fastening Technology: 8th edition
Fastening and assembly technology: Products and services
