DIN 7504K Self-Drilling Screw

Why it is built this way

Engineering notes

DIN 7504 form K is the hex-head member of the European self-drilling standard, and it is what most European roofing specifications call up by name. The standard fixes the head dimensions, the thread form and the drill point geometry, which means a contractor can substitute one compliant supplier for another without re-qualifying the fixing.

We produce it as a standard line in plain zinc and with a colour-coated head, both on the same certified blank. Where a project specification calls for ASTM C954 instead, the same tooling produces that variant — tell us which standard governs and the paperwork follows it.

Key features

• Produced and inspected against DIN 7504K dimensions
• Available plain zinc or with a colour-coated head
• Bonded EPDM sealing washer fitted as standard
• ASTM C954 variant available from the same tooling

Typical applications

• Metal roof panels
• Steel cladding
• Agricultural buildings
• Warehouses & sheds
• Carports
• Industrial roofing