The Industrial Matte Black Black Iron Security Door by YSM combines heavy-duty protection with urban-industrial elegance. Designed for apartments, lofts, and contemporary townhouses, this metal door features a solid steel core, anti-corrosion matte black finish, and integrated mail slot with gold accents for a refined industrial look. Engineered to perform reliably in temperatures from -20°C to 45°C, the advanced powder coating provides exceptional resistance to rust, moisture, and UV degradation. As a manufacturer with deep OEM/ODM expertise, we can produce doors in custom sizes, colors, and configurations to meet your exact specifications. All products are CE EN 14351-1 certified, RoHS compliant, and produced under ISO 9001:2015 quality management.

• Solid steel core with integrated mail slot — a 1.2mm stainless steel mail flap with weather seal ensures postal deliveries stay dry while maintaining the door's anti-pry integrity and weather tightness
• Customizable opening direction — choose inward or outward swing to match your building's egress requirements and spatial layout; hinge position is factory-set per your specification for flawless installation
• Triple-seal weather stripping system — EPDM rubber gaskets on the top, sides, and threshold provide a complete air and water seal, tested to Class 4 air permeability and Class 5A water tightness per EN 14351-1
• ISO 9001:2015 production with full batch traceability — every door receives a unique serial number linking to production date, material lot, coating batch, and QC inspection report for full supply chain transparency
• RoHS and CE EN 14351-1 certified — we provide the Declaration of Performance (DoP) and CE marking documentation required for EU market entry, simplifying your import and compliance process

Designed for urban apartments, condominiums, loft conversions, and contemporary townhouses where the industrial-chic aesthetic is desirable. The integrated mail slot makes it especially practical for multi-unit residential buildings where centralized mailboxes are not standard. Architects and interior designers appreciate the OEM/ODM flexibility to match building design specifications while maintaining CE compliance.

Q: What are the installation requirements for this steel security door?

A: Our doors are designed for installation in standard exterior door rough openings. The door comes pre-hung in a reinforced steel frame with pre-installed hinges and weather stripping. Installation requires basic carpentry tools, a level, shims, and expanding foam sealant for the frame perimeter. We provide detailed English installation manuals, and our technical team is available for remote consultation. The adjustable 3D hinges allow fine-tuning of alignment after installation.

Q: How do you ensure consistent quality across OEM/ODM orders?

A: Every production batch undergoes comprehensive quality inspection including: raw material mill certificates (steel gauge, zinc coating weight), in-process checks at each manufacturing station, finished product dimensional inspection, coating thickness measurement (60–80 micron target), adhesion testing (cross-hatch method), and functional testing of all moving parts. Pre-shipment inspection reports with photos are provided. Our ISO 9001:2015 system and CE EN 14351-1 certification ensure documented, repeatable quality.