CORROSHIELD® Fasteners METAPP® Sandwich Panel Screw
Designed for fastening sandwich panels and fixtures to steel purlins across thickness ranges indicated in the catalogue. Multiple configurations are shown depending on steel type and clamp requirement.
Specifications
Material: Carbon Steel
Head Type: Hex Washer Flange
Thread: Double Thread
Drill Point: LEVIN® 4 Drill Point
Drilling Capacity: Max 8mm
Washer: Grey EPDM washe
Best-Fit Applications
PUF sandwich panel to steel purlin
Cold rolled purlins and hot rolled beams (multiple tables shown)
Where METAPP® Sandwich Panel Screw is Used?
Use-case:
/1
Fastening insulated sandwich panels (PUF/PIR core panels) to structural steel framing systems
/2
Roof and wall panel installations where secure penetration through outer sheet, insulation core, and into steel substrate is required
/3
Insulated building envelopes requiring long fasteners to accommodate varying panel thicknesses
/4
Cold storage, clean-room, and temperature-controlled structures demanding reliable compression and sealing performance
/5
Heavy-duty panel fixing where strong pull-out strength and consistent clamping across panel layers are critical
Best-Fit Substrates:
• Cold-rolled C-purlins
• Cold-rolled Z-purlins
• Hot-rolled beams and structural steel members
Best-Fit Substrates:
• Cold-rolled C-purlins
• Cold-rolled Z-purlins
• Hot-rolled beams and structural steel members
Optional “Common sectors”:
Cold storage facilities, food processing plants, pharmaceutical units, industrial warehouses, manufacturing buildings, logistics hubs, modular structures, and infrastructure projects using insulated panel systems.
Fastener Types
METAPP®
Secure insulated sandwich panels to steel with a high-performance sealed fixing system.
Compatible configurations support both cold-rolled purlins and hot-rolled beams for flexible installation.
Designed to deliver thermal integrity, structural stability, and long-term weather resistance.
Quality Checks
METAPP® sandwich panel screws are tested under stringent controls to ensure secure fastening and thermal envelope integrity.
Each screw is verified for strength, sealing reliability, and long-term durability in panel applications.
Steel quality verified for dependable strength.
Heat treatment monitored for uniform hardness.
Thread profile inspected for firm anchorage.
Coating tested to resist corrosion.
Drive and pull-out performance confirmed.
How to Select the Right Sandwich Panel Screw?
Identify panel thickness – Choose the screw length to pass through the insulation core and anchor firmly into the support.
Match drill capacity – Ensure the drill point suits the steel gauge or structural member beneath the panel.
Verify sealing performance – Use appropriate washers to prevent moisture ingress and maintain insulation efficiency.
Consider environmental exposure – Select coatings that provide long-term corrosion resistance in harsh conditions.
Installation guidance
Choose screw length and clamp range based on total panel thickness + steel type.
Drive perpendicular; set washer correctly for weather seal.
Avoid overdriving (prevents panel damage and seal failure).
