CORROSHIELD® Fasteners METAPP® Valley Fixing Screw
Valley fixing screws attach the sheet to the roof/wall frame. The catalogue notes screws should be fixed perpendicular to the sheeting/cladding for best water-tightness, and that valley fixing on roof is not recommended in high rain zones.
Specifications
Material: Carbon Steel
Head Type: Hex Washer Flange
Thread: Full Thread
Drill Point: LEVIN® Drill Point
Drilling Capacity: Max 5.5mm
Washer: Grey EPDM washe
Best-Fit Applications
Valley fixing for wall and side cladding sheeting to corrugated & inverted box rib profiles
Steel purlins
Painted head options for pre-painted profiles
Where METAPP® Valley Fixed Screw is Used?
Use-case:
/1
Fastening metal roofing and wall cladding sheets directly to steel purlins with secure clamping action
/2
Valley fixing applications where firm sheet-to-structure contact and load distribution are essential
/3
General-purpose metal-to-steel connections requiring consistent torque transfer and head stability during installation
/4
Installations exposed to weather where a bonded sealing washer helps prevent water penetration
/5
High-vibration environments where integrated washer support improves pull-through resistance and joint durability
Best-Fit Substrates:
• Cold-rolled C-purlins
• Cold-rolled Z-purlins
• Light structural steel framing
Best-Fit Substrates:
• Cold-rolled C-purlins
• Cold-rolled Z-purlins
• Light structural steel framing
Optional “Common sectors”:
Pre-engineered buildings (PEB), industrial sheds, warehouses, logistics centers, commercial roofing projects, agricultural buildings, and infrastructure structures.
Fastener Types
METAPP®
Pierce-fixing profiled sheets to steel frames ensures strong mechanical fastening and structural stability.
The system provides reliable sealing to prevent water ingress and withstand harsh weather conditions.
Ideal for steel roofing applications requiring durability, precision, and long-term performance.
Quality Checks
METAPP® valley fixing screws pass rigorous inspections to ensure strong anchorage and leak-proof performance.
Each unit is validated for material strength, coating life, and installation reliability in roofing environments.
Steel grade confirmed for high tensile strength.
Heat treatment monitored for uniform hardness.
Thread geometry checked for secure penetration.
Corrosion protection tested for extended durability.
Drive and pull-out performance verified.
How to Select the Right METAPP® Valley Fixing Screw?
Confirm the roofing profile – Select the screw suitable for valley fixing to ensure proper seating and load transfer.
Check purlin thickness – Match the drill point capacity and length with the steel support gauge.
Ensure sealing performance – Use EPDM washers to prevent water ingress and maintain weather tightness.
Consider exposure conditions – Choose appropriate corrosion protection for coastal or industrial environments.
Installation guidance
Install perpendicular to the sheet/cladding.
For cladding, fix in the middle of the rib.
Tighten until washer seals; do not overdrive.
Get Pricing & availability for METAPP®
Frequently asked questions
Yes—catalogue notes availability with painted heads for pre-painted profiles. Confirm RAL requirement during enquiry.
