CORROSHIELD® Fasteners METAPP® Concealed Fixing Screw
METAPP® Concealed Fixing Screws are designed for concealed/secret-fix applications, where the fastener is driven through a concealed clip into the supporting steel—helping deliver a cleaner finish while keeping fixing points protected under the profile.
Specifications
Material: Carbon Steel
Head Type: Wafer Head
Thread: Full Thread
Drill Point: LEVIN® Drill Point (and LEVIN® #5 option for thicker steel)
Drilling Capacity: Upto 5.5mm or 12.5mm steel
Best-Fit Applications
Concealed clip fixing systems
Concealed / secret-fix roof and wall cladding profiles
Steel purlin clip fastening
Where METAPP® is Used?
Use-case:
/1
Fixing concealed clip systems to steel purlins in secret-fix roofing applications
/2
Modern roofing systems where weather resistance, hidden fastening, and long-term durability are critical.
/3
Clip-through fastening applications where the screw is driven through a concealed clip into the supporting steel section
Optional “Common sectors”:
PEB buildings, industrial sheds, warehouses, commercial complexes, logistics facilities, manufacturing units, and modern infrastructure structures.
Fastener Types
METAPP®
Concealed / secret-fix fastening delivers a sleek, uninterrupted roof appearance with no visible fasteners.
It enhances weather resistance while ensuring strong and secure clip fixing beneath the surface.
Ideal for modern roofing systems where aesthetics, durability, and performance matter most.
Quality Checks
Every METAPP® concealed fixing screw undergoes stringent inspections to ensure strength, precision, and reliability.
From material quality to corrosion resistance, each parameter is tested for long-term performance in demanding roofing applications.
Raw material grade verified for superior strength.
Heat treatment controlled for optimal hardness.
Precision threads checked for tight engagement.
Corrosion-resistant coating tested for long life.
Head and washer dimensions inspected accurately.
Performance validated through pull-out testing.
Installation guidance
Ensure the concealed clip is correctly seated and aligned before driving the screw.
Drive perpendicular to the clip/steel for best engagement and consistent clamp.
Stop once the clip is firmly secured—avoid overdriving.
ScratchShield® shank protection and LEVIN® drilling performance
Get Pricing & availability for METAPP®
Frequently asked questions
No—this product is specified for concealed/secret-fix systems where the screw secures the concealed clip.
Yes, RAL colour matched options are indicated for METAPP® ranges—confirm required colour and configuration at enquiry stage.
