DIN 7504-K self-drilling screw with EPDM washer
Manufactured in case-hardened steel. The washer incorporated into the design of the head allows for a greater area to be fastened. These screws are mainly recommended for use directly on metallic sheets or steel and aluminium profiles.
Suitable for fixing façades and metal coverings in steel structures, especially in outdoor applications.
Screw: C1018-C1022 case hardened steel
Gasket: EPDM rubber EP74V
Washer: Steel-Sheet EN 10142 Dx51 (1.0226)
Screw and washer: Zinc plated
Screw: Surface hardness Min. 500 HV
Core hardness 240 - 450 HV
Board: 70-76º shore