4x4x2.5mm Stainless Steel Hinge with Security Pin 304/201 Heavy Duty Security Stud Butt Hinge Rustproof Anti-Corrosion Silent Door Hinge Electrophoretic Black

Premium Material Option: Available in 304 or 201 grade stainless steel, the hinge features excellent corrosion resistance and durability. 304 grade is ideal for humid environments (such as bathrooms, outdoor doors) with strong rust resistance, while 201 grade offers reliable performance for indoor regular use, meeting different budget and usage needs.

Standard Size & Sturdy Structure: Measured 4" x 4" x 2.5mm (thickness), the hinge is designed with a thickened structure that ensures strong load-bearing capacity, not easy to deform or break even after long-term use. The standard size fits most residential, commercial and industrial doors, making it a versatile replacement or installation accessory.

Built-in Security Pin Design: Equipped with a security pin (anti-theft buckle) to effectively prevent the door from being pried open from the outside, enhancing the safety of your home, office or warehouse. The security pin is easy to install and disassemble, balancing security and convenience.

Smooth & Quiet Operation: The hinge is precision-processed with a smooth bearing, ensuring quiet and friction-free rotation when opening or closing the door. No annoying squeaking sound, providing a comfortable and peaceful living or working environment.

Easy Installation & Wide Application: Comes with all necessary mounting hardware (screws included), allowing for quick and hassle-free installation. Suitable for wooden doors, metal doors, cabinet doors, garage doors, etc., perfect for residential, commercial and industrial scenarios.