DIN 7504K/ISO 15480 Yellow zinc self drilling hex head roofing screw with metal EPDM washer for trapezoidal metal sheet

Technical Product Description: Self-Drilling Hex Head Roofing Screw with Metal EPDM Washer 

Product Overview:

Our self-drilling hex head roofing screws are manufactured in strict compliance with DIN 7504K and ISO 15480 standards, specifically engineered for secure fastening of trapezoidal metal sheets in construction applications.

Key Technical Features:

Material & Coating: High-grade carbon steel core material

Yellow zinc chromate surface coating providing excellent corrosion resistance

Salt spray test rating: 500 hours/1000 hours/1500 hours

Drilling & Thread Design: Self-drilling point design eliminates need for pre-drilling

Optimized for penetration through trapezoidal metal sheets (0.5-2.0mm thickness)

Special thread geometry ensures rapid installation and secure holding power

Head & Washer System: Hex head design (ISO 4017) for secure tool engagement

Integrated metal-backed EPDM washer：

19mm washer diameter ensures effective sealing

EPDM material maintains elasticity from -40°C to +120°C

Technical Specifications:

Standards: DIN 7504-K, ISO 15480

Drive Type: Hex Head (External Drive)

Washer: Metal-EPDM Composite (19mm)

Coating: Yellow Zinc Chromate/ Galvanized

Point Type: Self-drilling

Applications: Trapezoidal Metal Sheets, Roofing Panels, Cladding Systems

Performance Advantages:

Weather-resistant sealing prevents water infiltration

Corrosion protection suitable for harsh environments

Quick installation reduces labor costs

Consistent performance in temperature variations

Typical Applications:

Industrial roofing systems

Warehouse and factory buildings

Agricultural structures

Commercial cladding installations

All products undergo rigorous quality control and are supplied with complete certification documentation. Available in various lengths and packaging options to meet specific project requirements.