13.5 square, 12-inch window hinge with 2.5mm thickness

This 12-inch window hinge featuring a 13.5mm square tube and 2.5mm thick steel construction is purpose-built for light to medium-weight outward-opening windows. Compact yet robust, it provides reliable structural support, controlled movement, and long-term durability—making it a practical choice for residential and small-scale commercial installations.

Key Features:

Compact 13.5mm Square Tube Structure:
The slim 13.5mm x 13.5mm square tube design is ideal for narrow frame profiles, offering reliable support while saving installation space.

Heavy-Duty Thickness – 2.5mm:
Manufactured from 2.5mm thick steel, this hinge resists bending and wear, ensuring stable, long-term performance.

Medium-Length – 12 Inches:
A versatile size suitable for small to medium window sashes, balancing reach with structural integrity.

Friction Stay Mechanism:
Built-in friction sliders (nylon or brass) allow the window to stay open at different angles without slamming shut or requiring additional props.

Anti-Corrosion Surface Options:
Available in galvanized, powder-coated, or optional stainless steel finishes for added protection in humid or outdoor environments.

Simple Installation:
Pre-drilled holes with standard spacing make it compatible with aluminum, uPVC, or light steel window frames.

Technical Specifications:

Length: 12 inches (305 mm)

Tube Size: 13.5mm × 13.5mm

Material Thickness: 2.5mm

Material Options: Galvanized Steel / Powder-Coated / Stainless Steel (optional)

Opening Angle: Up to 75–85°

Load Capacity: Up to 20–30 kg depending on window configuration

Applications:

Light to medium-sized outward-opening windows

Residential apartments, kitchens, bathrooms, and small office windows

Projects requiring compact-size hardware with solid performance

Ideal for OEM window manufacturers and installers