Bi-metal Fastening Solutions (Metric) 
ETA Approved Performance
ETA-21/0537
Certified fastening performance for professional construction applications.
ETA Bi-Metal Sandwich Panel Screws
Product Overview
ETA Bi-Metal Sandwich Panel Screws
Reliable Fastening for Sandwich Panel Systems.
Bi-Metal Sandwich Panel Screws combine stainless steel corrosion resistance with hardened steel drilling performance, making them suitable for demanding outdoor and insulated panel applications.
Designed for sandwich panel installation where fast drilling, reliable sealing performance, and long-term durability are essential.
Product Features
Features
ETA Approved
CE Marking
Reaction to Fire Class A1
Assessed Working Life of at Least 25 Years
A2 / A4 Stainless Steel Body + Hardened Carbon Steel Drill Point
A2 / A4 Stainless Steel Sealing Washer
Drilling Capacity up to 12 mm Steel
Long-Term Corrosion Resistance
Suitable for Sandwich Panel Systems
Performance Benefits
Key Advantages
Fast Installation
Efficient drilling performance for steel-to-steel fastening applications.
Long-Term Corrosion Resistance
Designed for outdoor and exposed environments requiring durable fastening performance.
Reliable Panel Fastening
Supports stable installation for insulated sandwich panel systems.
Professional Construction Performance
Engineered for demanding roofing, facade, and industrial building applications.
ETA Bi-Metal Sandwich Panel Screws
Austenitic Stainless Steel SUS A2-302 / A2-304 / A4-316
| Diameter | Length (mm) | Point Size |
Max Drilling Capacity (mm) |
Drive Speed (R.P.M) |
|
|---|---|---|---|---|---|
| min | max | ||||
| Ø5.5/4.8 | 50 | 300 | #1 | 1+1 | 1800-2500 |
| Ø6.3/5.5 | 50 | 300 | #1 | 1+1 | 1800-2500 |
| Ø7.0/6.3 | 50 | 300 | #1 | 1+1 | 1800-2500 |
| Ø5.5/4.8 | 50 | 300 | #2 | 3 | 1800-2500 |
| Ø6.3/5.5 | 50 | 300 | #2 | 3 | 1800-2500 |
| Ø7.0/6.3 | 50 | 300 | #2 | 3 | 1800-2500 |
| Ø5.5/4.8 | 50 | 300 | #3 | 6 | 1800-2500 |
| Ø6.3/5.5 | 50 | 300 | #3 | 6 | 1800-2500 |
| Ø7.0/6.3 | 50 | 300 | #3 | 6 | 1000-1800 |
| Ø6.3/5.5 | 63 | 300 | #5 | 12.5 | 1000-1800 |
| Ø7.0/6.3 | 63 | 300 | #5 | 12.5 | 1000-1800 |
Application Fields
Applications
Sandwich Panel Systems
Reliable fastening solutions for insulated wall and roof panels.
Roofing & Cladding
Designed for outdoor building envelope applications.
Industrial Buildings
Suitable for factories, warehouses, and commercial structures.
Cold Storage Facilities
Corrosion-resistant fastening for insulated construction systems.