Self-drilling Design: The drill tip quickly penetrates the metal panel and base steel, eliminating the need for pre-drilling and significantly improving installation efficiency.
Double-thread Construction: The upper thread securely engages the panel metal layer, while the lower thread secures the panel metal layer.
High Strength: Suitable for applications requiring high wind loads, tension, and shear resistance.
Corrosion Resistance: Available in stainless steel or high-grade anti-corrosion coatings, suitable for outdoor and high-rise applications.
Customizable: Custom lengths, head shapes, and colors (RAL coating) can be customized to meet project requirements.
Length range: 50 mm – 300 mm
Screw head: 8 mm hexagonal nut head for easy electrical installation
Surface finish: Available in zinc plating, chrome plating, anodized, or stainless steel (A2/A4) to meet the corrosion resistance requirements of different environments
Our Sandwich Panel Screws, made from A2/A4 stainless steel, are engineered to provide reliable, long-lasting fastening for sandwich panels, metal sheets, and composite materials. Designed for both industrial and commercial applications, these screws combine strength, corrosion resistance, and precision, making them a preferred choice in demanding construction environments.
Material Excellence:
Made from A2 (304) or A4 (316) stainless steel, ensuring high resistance to rust and corrosion, even in humid or coastal environments. A4 offers superior protection against chlorides, ideal for coastal projects or chemical plants.
Precision Engineering:
Manufactured with tight tolerances, these screws provide consistent performance, reducing the risk of material damage during installation.
Self-Drilling & Threading Options:
Available in self-drilling or standard threading designs to accommodate various panel thicknesses and installation needs. This eliminates the need for pre-drilling, saving time and labor costs.
Washer and Sealing Options:
Compatible with EPDM or neoprene washers for enhanced waterproofing and vibration resistance, critical in roofing and facade applications.
Durable Coatings:
Optional coatings, such as passivation or zinc plating, further extend lifespan and improve corrosion resistance while maintaining stainless steel integrity.
| Feature | Specification |
| Material | A2 (304) / A4 (316) Stainless Steel |
| Head Type | Hex, Pan, or Button Head |
| Drive Type | Phillips / Torx / Hex |
| Length | 16mm – 200mm |
| Diameter | 4.8mm – 6.3mm |
| Washer Compatibility | EPDM, Neoprene |
| Corrosion Resistance | Excellent (A2) / Superior (A4) |
Roofing and wall sandwich panels
Industrial and commercial metal cladding
Cold storage and cleanroom construction
Coastal and chemical facility installations
Using A2/A4 stainless steel screws ensures structural integrity and long-term performance. Their precision design reduces panel stress, prevents leaks, and maintains aesthetic quality. Ideal for architects, contractors, and builders seeking reliable, corrosion-resistant fastening solutions.
