Mortise Locks for Doors - High-Security Door Lockset (DDML016)
Product Overview
D&D HARDWARE’s Mortise Locks for Doors (Model: DDML016) is a premium door lock solution engineered for residential, commercial, and hospitality security. Compliant with EN12209-Grade 3 and DIN18251-1 international standards, this door lockset delivers exceptional anti-pick, anti-drill, and anti-snap performance—ideal for hotel front doors, apartment entrances, office building main gates, and high-security residential spaces. Crafted from stainless steel, brass, or zinc alloy, it integrates seamlessly with D&D’s door handles, door closers, and panic hardware, forming a cohesive door hardware system. With flexible backset options, multiple finishes, and durable construction, it balances security, aesthetics, and usability for global projects.
Mortise Locks for Doors - Technical Specifications
- Model Number: DDML016
- Brand: D&D HARDWARE
- Material Options: Stainless Steel (SUS304), Brass, Zinc Alloy
- Standards Compliance: EN12209-Grade 3 (European security standard), DIN18251-1 (German door hardware standard)
- Follower Size: 8×8 mm
- Distance (Lock Case Dimensions): 72mm, 85mm
- Backset Options: 40mm, 45mm, 50mm, 55mm, 60mm (compatible with standard door thicknesses: 35–50mm)
- Forend Type: Radius Head, Square Head
- Forend Thickness: 3mm
- Forend Width: 22mm, 23mm, 24mm
- Finish Options: SSS (Satin Stainless Steel), PSS (Polished Stainless Steel), PVD (Matte Black/Bronze), AB (Antique Brass), AC (Antique Copper)
- Core Security Level: Anti-pick (6-pin tumbler), anti-drill (hardened steel plate), anti-snap (reinforced cylinder neck)
- Warranty: 5 Years Mechanical Warranty
Mortise Locks for Doors - Product Images and Videos
Mortise Locks for Doors - Product Features & Advantages
- EN12209-Grade 3 High Security: Meets the highest European security standard for mortise locks—resists 10+ minutes of pick attempts, 5+ minutes of drill attacks, and snap force up to 500N. The 6-pin tumbler core with mushroom pins and anti-drill hardened steel plate exceeds ordinary door locks, making it ideal for hotel front desks, office server rooms, and apartment main entrances.
- Multi-Material Durability: - Stainless Steel (SUS304): Corrosion-resistant for bathroom doors, outdoor entries, and coastal villas (240-hour salt spray test, no rust). - Brass: High strength and luxurious appearance for luxury hotels、dining area doors (polished finish retains shine for 10+ years). - Zinc Alloy: Cost-effective for school classrooms、mall retail units (impact-resistant, no deformation under 100N force).
- Flexible Backset & Forend Options: 5 backset sizes (40–60mm) fit standard door thicknesses (35–50mm); radius/square forend types match modern、traditional、industrial design styles. Eliminates the need for custom door modification, reducing installation time by 40%.
- Seamless Integration with Door Hardware Ecosystem: Compatible with D&D’s door handles (matching finishes like PVD black or SSS), door closers (adjustable closing speed), and panic hardware (for emergency egress in hospitals、office buildings). The standard mounting pattern aligns with industry norms, enabling easy retrofits.
- Quiet Operation & Smooth Handling: Integrated nylon bushings reduce friction between the lock body and follower, ensuring silent locking/unlocking (≤30dB)—critical for hospital patient rooms、bedroom doors, and home offices. The ergonomic keyway design prevents key jamming, even with frequent use.
- Weather-Resistant & Low Maintenance: The lock body features a protective powder coating; the cylinder is sealed with EPDM gaskets to prevent dust/water ingress (IP54 rating). Suitable for outdoor entries、farmhouse doors, and requires only annual lubrication (with included silicone oil) for long-term performance.
Mortise Locks for Doors - Installation Steps
- Pre-Installation Preparation: - Confirm door thickness (35–50mm) and select matching backset (e.g., 45mm for standard apartment doors, 60mm for thick villa doors). - Gather tools: Drill (3mm/5mm bits), chisel, screwdriver, tape measure, pencil, and level. - Check compatibility with D&D’s door handle (ensure follower size 8×8mm matches handle spindle).
- Mark & Create Mortise: - Use the included template to mark the mortise outline on the door edge (align with backset size) and the faceplate position on the door face. - Drill pilot holes along the mortise outline, then chisel the mortise to fit the lock body (depth = lock body thickness; width = forend width). - Chisel a recess for the faceplate (depth = faceplate thickness) to ensure flush installation.
- Install Lock Body & Faceplate: - Insert the lock body into the mortise, align the faceplate with the recess, and secure with provided screws (tighten to 8–10 ft-lbs torque). - Test the lock tongue extension/retraction by turning the follower—ensure smooth movement without binding.
- Install Cylinder & Door Handle: - Insert the cylinder into the lock body, secure with the set screw (avoid over-tightening to prevent cylinder damage). - Attach D&D’s door handle to the follower (align the handle spindle with the 8×8mm follower), secure with handle screws.
- Install Strike Plate & Test Functionality: - Mark the strike plate position on the door frame (align with lock tongue), chisel a recess, and secure the strike plate with screws. - Test locking/unlocking with the key (ensure key turns smoothly, tongue extends fully into strike plate). - Test with D&D’s door closer (if installed) to confirm lock holds door closed without bouncing.
Mortise Locks for Doors - Application Scenarios
The DDML016 Mortise Locks for Doors excel in diverse environments demanding security, durability, and aesthetics:
- Hospitality (Luxury Hotels & Resorts): - Use Case: Guest room entry doors, front desk reception doors, dining area private rooms. - Value: EN12209-Grade 3 security prevents guest property theft; brass material with PSS finish complements luxury decor; compatible with smart lock cylinders (for keyless check-in).
- Residential (Apartments, Villas, Farmhouses): - Use Case: Main entry doors, bedroom privacy doors, home office security doors. - Value: Stainless steel option resists bathroom humidity; adjustable backset fits thick villa doors; silent operation avoids disturbing family members.
- Commercial (Office Buildings, Malls): - Use Case: Executive office doors, server room doors, mall retail storefronts. - Value: Anti-drill/anti-pick features protect sensitive documents/merchandise; compatible with panic hardware for emergency egress; zinc alloy option reduces project costs for bulk orders.
- Institutional (Hospitals, Schools): - Use Case: Patient room doors, pharmacy doors, classroom doors. - Value: IP54 weather resistance suits hospital cleaning routines; quiet operation supports healing/learning environments; brass material with AB finish resists scratches from frequent use.
Value for Buyers: - Architects/Designers: Achieve security compliance without compromising aesthetics; multiple finishes match door hardware palettes. - Contractors: Save time with flexible backset/forend options; reduce callbacks via 5-year warranty; seamless integration with D&D’s door handles/closers cuts procurement complexity. - Facility Managers: Low maintenance design reduces upkeep costs; high-security features lower theft risks; weather resistance extends lifespan in harsh environments. - Homeowners: Enjoy peace of mind with EN12209-Grade 3 security; silent operation enhances living comfort; durable materials avoid frequent lock replacements.
Certifications and Compliance
- Security & Performance Certifications: - EN12209-Grade 3: European standard for mortise locks—tested for anti-pick (10min), anti-drill (5min), anti-snap (500N force), and 100,000-cycle durability. - DIN18251-1: German standard for door hardware—ensures compatibility with European door profiles and mounting standards. - CE: Compliant with EU Machinery Directive (2006/42/EC) for safety in commercial use. - UL 10C: US standard for fire resistance—suitable for fire-rated doors (when paired with D&D’s fire-rated door closers).
- Material & Quality Standards: - Stainless Steel (SUS304): Pass 240-hour salt spray test, no rust
- Quality Management: - ISO 9001:2015: Manufactured under certified quality system—100% functional testing for each lock (key operation, tongue extension, durability). - SGS Factory Audited: Production facility verified for ethical manufacturing, traceable material sourcing, and 200,000 units/month capacity.
Customization Options
D&D offers tailored solutions for DDML016 to meet project-specific security and design needs:
- Material Customization: - SUS316 Stainless Steel: Enhanced corrosion resistance for coastal villas、marine hotels (1000-hour salt spray test, no rust). MOQ: 500 units. - Solid Brass: Premium option for luxury hotels、heritage buildings (hand-polished finish, unique patina over time). MOQ: 300 units.
- Finish Customization: - RAL/Pantone Color Matching: Brand-specific hues (e.g., mall chain colors, corporate branding). MOQ: 300 units. - Custom Patinas: Aged bronze, vintage copper for traditional、European villas. MOQ: 500 units. - Dual-Tone Finishes: SSS body + PVD black handle for modern office buildings. MOQ: 1000 units.
- Security & Function Customization: - High-Security Cylinder: Anti-bump, anti-masterkey (for government buildings、hospitals). MOQ: 1000 units. - Backset Expansion: 70mm、80mm for extra-thick doors (e.g., villa security doors, industrial workshops). MOQ: 1000 units. - Privacy Function: Thumbturn cylinder for bathroom、bedroom doors (no key required for internal unlocking). MOQ: 500 units.
- OEM/ODM Services: - Private Label: Custom logos on faceplates、packaging (for hotel chains、regional distributors). MOQ: 2000 units. - Custom Lock Body Design: Modified dimensions for non-standard doors (e.g., barn door hardware compatibility). MOQ: 3000 units. - Smart Lock Integration: Pre-drilled for D&D’s smart lock cylinders (Bluetooth、NFC、RFID). MOQ: 1000 units.
