Material: Bimetal (1022A Carbon Steel + SUS410 Stainless Steel)
Dimensions:

Diameter: 5.5–24mm | Lengths: 25/32/38/45/50/65/75/100/125mm
Key Features:

​Surface Treatment: Zinc-plated, Salt Spray Resistance 500H/1000H/1500H (Class 3/4 per ISO 9227)
​High Strength: Tensile 380-440 MPa | Yield 620-720 MPa
​Self-Drilling Tip: Hex flange design for secure fastening without pre-drilling
Packaging: 380–440 pcs/carton | Price: $620–720

Applications:
Metal roofing, industrial frameworks, and corrosive environment installations.

Standards: ASTM F568M, DIN 7500.