Material: 304+435 / 316+435 (Stainless Steel + Alloy Steel Core)
Dimensions: Ø4.8/5.5/6.3/8.0 × 22–350mm
Corrosion Resistance:

Salt Spray Test: 500H/1000H/1500H/2000H
Acid Rain Cycle: Class 3/4/5 (ISO 9227 & ASTM G85)
Key Features:

Dual-metal design for corrosion resistance + high shear strength (≥800MPa).
Self-drilling tip eliminates pre-drilling in steel/metal substrates.
Custom head types (hex/washer) and coatings (gecko/phosphating) available.
Applications:
Metal roofing, solar racking, and offshore equipment in corrosive environments.