CORROSHIELD® Fasteners METAPP® Stitching Screw
METAPP® Sheet Metal Screws are used to secure overlapping metal sheets (stitching), helping stabilize laps, flashings, and sheet-metal junctions.
Specifications
Material: Carbon Steel
Head Type: Hex Washer Flange
Thread: Full Thread
Drill Point: Needle Point
Drilling Capacity: Max 1mm
Best-Fit Applications
PROTAPP® metal to metal self drilling screws are recommended for:
Sheet-to-sheet stitching.
Sheet metal applications
Z-channel purlin related stitching points.
Step counter flashing stitching.
Where METAPP® Stitching Screw is Used?
Use-case:
/1
Securing overlapping metal roofing and wall cladding panels at longitudinal side-laps or junctions to form a continuous weather-tight skin — a primary application for metal to metal fasteners in industrial and commercial construction.
/2
Fastening flashings, trims, and sheet-to-sheet connections where two profiled sheets meet on the roof or wall surface — requiring reliable self tapping metal screws for clean, tight joints.
/3
Improving wind uplift resistance and preventing movement of sheet overlaps under dynamic loading conditions — where steel to steel fasteners deliver the holding strength required.
/4
Stitching thin gauge steel panels together without the need for pre-drilled holes, using a metal to metal self drilling screw tip and sealing washer for reliable fixation.
Optional “Common sectors”:
Pre-Engineered Buildings (PEB), Factories, Manufacturing plants, Warehouses, Solar mounting structures, Cold rooms, Food processing plants, Coastal industrial buildings — where stainless steel cladding screws are often specified — Airport hangars, Metro stations, Railway platform shelters.
Quality Checks
Every METAPP® sheet metal screw is manufactured under strict quality controls to deliver precise fastening and dependable sealing. Material integrity, coating durability, and dimensional accuracy are verified for consistent on-site performance.
High-grade steel verified for strength and consistency.
Thread form inspected for firm sheet-to-sheet grip.
Protective coating tested against corrosion — essential for long-lasting steel to steel fasteners in exposed environments.
Head dimensions checked for proper drive fit.
Torque and pull-out performance validated.
Installation guidance
Stitch at the recommended lap locations for your profile/system.
Drive square to the sheet surface.
Tighten until the washer seals—do not crush/overdrive.
Get Pricing & availability for METAPP®
Frequently asked questions
Stitching screws are primarily for sheet-to-sheet connections. For sheet-to-structure, use the appropriate METAPP® fixing screw type.
