Self-Drilling Screws For Metal Sheets 5.5 x 57mm with Washer T14, Zinc Plated - plastic bag - 100 pcs.

Features

The special drill bit shape designed to provide quick and trouble-free installation in metal constructions made from cold formed sections

• Coloured polyester protective coating with a thickness of 45-50um (RAL,NCS RR) provides additional protection against corrosion. Various colours available to suit all metal sheet variants. UV stabilizers ensure colour quality over a long period of use.
• Hardened surface of the thread (flexible core). Corrosion resistant zinc coating of thickness not less than 12 um. The shape of the thread and its height is closely related to the intended use of self drilling fixing into steel construction.
• Self vulcanizing EPDM washer. Temperature and UV resistant. The special shape of the washer ensures proper seating of the sealing material on the outer cladding material fixture which guarantees a proper seal.