Sliding Door Hook Lock - High-Security SUS304 Sliding Door Lockset (DDML031)
Product Overview
D&D HARDWARE’s Sliding Door Hook Lock (Model: DDML031) is a precision-engineered door lock designed exclusively for sliding doors, blending robust security with sleek aesthetics for residential and commercial use. Crafted entirely from solid SUS304 stainless steel—including hook bolts, forends, and strike plates—this lock resists corrosion, tampering, and wear, making it ideal for apartments, villas, hotels, and office buildings. With a 50mm backset, radius-head forend, and versatile finishes, it seamlessly integrates with D&D’s door handles, door closers, and door accessories, forming a cohesive door hardware system. The single-hook design delivers reliable anti-pry protection, while its low-maintenance structure ensures long-term performance, meeting the demands of global buyers prioritizing safety and durability.
Sliding Door Hook Lock - Technical Specifications
- Model Number: DDML031
- Brand: D&D HARDWARE
- Material Composition: - Hook Bolt: Solid SUS304 Stainless Steel (hardness ≥ HRC 43, anti-bend/break) - Forend & Strike Plate: SUS304 Stainless Steel (corrosion-resistant)
- Backset: 50mm (compatible with sliding door thicknesses: 35–55mm)
- Forend Plate Specifications: Width 16mm × Height 158mm × Thickness 2.5mm
- Forend Type: Radius Head (curved edge design, matches modern、contemporary interiors)
- Finish Options: SSS (Satin Stainless Steel), PSS (Polished Stainless Steel), PVD (Matte Black/Bronze), PB (Polished Brass), AC (Antique Copper)
- Security Performance: Anti-pry hook design (withstands 600N pull force); weather-resistant (IP54 rating for semi-outdoor use)
- Warranty: 5 Years Mechanical Warranty
Sliding Door Hook Lock - Product Images and Videos
Sliding Door Hook Lock - Product Features & Advantages
- Full SUS304 Durability & Corrosion Resistance: Every component—from hook bolt to strike plate—is made of SUS304 stainless steel, passing 100-hour salt spray tests (no rust or oxidation). Ideal for humid environments (e.g., bathroom sliding doors)、coastal villas, and semi-outdoor spaces (patio doors), with a 15+ year service life—outperforming zinc-alloy or brass-plated competitors.
- Radius Head Forend for Aesthetic Versatility: The curved-radius forend avoids sharp edges, complementing modern、European, and contemporary sliding door designs. Finishes like PVD black pair with black door handles and metal door stoppers, while SSS blends with stainless steel door closers—ensuring design cohesion across door hardware systems.
- Anti-Pry Hook Lock Security: The solid steel hook engages deeply with the strike plate, resisting 600N pull force (2x stronger than standard sliding door latches). Prevents unauthorized lifting or prying of sliding doors—critical for apartment balconies、hotel poolside doors, and office storage partitions.
- Seamless Integration with D&D Door Systems: Designed to work with D&D’s sliding door handles (matching spindle size and finish)、door closers (for automatic sliding doors), and door seals (enhancing insulation and security). Standard mounting holes align with industry norms, reducing installation time by 25% for contractors.
- Low Maintenance & Quiet Operation: The hook bolt features self-lubricating nylon inserts that eliminate metal-on-metal friction, ensuring silent locking/unlocking (≤28dB)—suitable for bedroom sliding wardrobes and home offices. Requires only annual cleaning with a dry cloth (no harsh chemicals needed), cutting long-term upkeep costs.
Sliding Door Hook Lock - Installation & Usage Steps
- Pre-Installation Preparation: - Confirm sliding door thickness (35–55mm) and backset compatibility (50mm); select a finish matching D&D’s door handle (e.g., PSS for luxury hotels, PVD black for industrial offices). - Gather tools: Drill (3mm/4mm bits), Phillips screwdriver, tape measure, pencil, level, and a small chisel (for strike plate recess).
- Mark & Install the Lock Body: - Use the included template to mark the lock body position on the sliding door’s edge (align with 50mm backset). - Drill pilot holes for the lock body screws, then secure the lock with provided SUS304 screws (tighten to 5–7 ft-lbs torque—avoid over-tightening to prevent door damage). - Test the hook bolt: Turn the lock cylinder to extend/retract the hook—ensure smooth movement without jamming.
- Install the Strike Plate: - Close the sliding door fully; mark the strike plate position on the door frame (align with the extended hook). - Chisel a shallow recess (depth = strike plate thickness, ~2.5mm) to ensure flush installation (prevents frame damage from the sliding door). - Secure the strike plate to the frame with long SUS304 screws (for solid wood frames) or wall anchors (for hollow frames).
- Mount the Door Handle & Test Functionality: - Attach D&D’s sliding door handle to the lock’s follower (insert the handle spindle into the lock’s internal mechanism). - Secure the handle with set screws; test locking/unlocking 5 times with the key (the hook should fully engage the strike plate and retract without resistance). - Slide the door back/forth to confirm no friction between the lock and frame; adjust the strike plate slightly if needed.
- Usage & Maintenance Tips: - To lock: Close the sliding door, insert the key, and turn 90° clockwise (hook extends into the strike plate). - To unlock: Turn the key 90° counterclockwise (hook retracts); slide the door open. - Every 12 months: Apply 1 drop of silicone oil to the hook bolt (included with the lock) to maintain smooth operation.
Sliding Door Hook Lock - Application Scenarios
The DDML031 Sliding Door Hook Lock excels in sliding door applications where security、durability, and aesthetics overlap—meeting the needs of diverse global buyers:
- Residential (Apartments, Villas, Farmhouses): - Use Case: Balcony sliding glass doors, living room patio doors, bedroom wardrobe sliding doors. - Value: SUS304 corrosion resistance withstands bathroom humidity/coastal salt; anti-pry design protects families; radius-head forend complements cabinet handles for cohesive home decor.
- Hospitality (Hotels, Resorts, Boutique Inns): - Use Case: Guest room sliding balcony doors, dining area sliding partitions, poolside sliding doors. - Value: Silent operation avoids disturbing guests; durable finishes (e.g., PB) match luxury door hardware; IP54 rating suits semi-outdoor spaces (pool areas).
- Commercial (Office Buildings, Malls, Retail Stores): - Use Case: Office pantry sliding doors, mall storefront sliding glass doors, co-working space sliding partitions. - Value: Anti-pry security protects office supplies/merchandise; easy integration with smart lock cylinders (for keyless access); bulk-order compatibility reduces project costs.
- Institutional (Hospitals, Schools, Nursing Homes): - Use Case: Hospital patient room sliding doors, school classroom storage sliding doors, nursing home balcony sliding doors. - Value: SUS304 meets hygiene standards (easy to disinfect); silent operation supports calm environments; durable design withstands frequent use by staff/students.
Value for Buyers: - Architects/Designers: Achieve security without sacrificing aesthetics; radius-head design and versatile finishes match door hardware palettes. - Contractors: Save time with standard mounting and compatible door handles; reduce callbacks via 5-year warranty; bulk supply (200,000 units/month) meets tight project timelines. - Facility Managers: Low maintenance cuts upkeep costs; SUS304 durability reduces replacement frequency; anti-pry design lowers security risks. - Homeowners: Enjoy peace of mind with reliable security; silent operation enhances living comfort; long lifespan avoids frequent lock replacements.
Sliding Door Hook Lock - Customization Options
D&D offers tailored solutions for DDML031 to meet project-specific sliding door needs—supporting OEM/ODM requests for global buyers:
- Material Upgrades: - SUS316 Stainless Steel: Enhanced corrosion resistance for marine hotels、coastal villas, and chemical-intensive environments (1000-hour salt spray test, no rust). MOQ: 500 units.
- Finish & Design Customization: - RAL/Pantone Color Matching: Brand-specific hues (e.g., mall chain colors、corporate branding) for forends and strike plates. MOQ: 300 units. - Square Head Forend: Replacement of radius head with square design (for traditional、industrial sliding doors). MOQ: 1000 units. - Dual-Tone Finishes: SSS hook bolt + PVD black forend (matches modern office door hardware). MOQ: 1000 units.
- Size & Function Adjustments: - Backset Customization: 40mm、60mm、70mm for non-standard sliding door thicknesses (e.g., barn door hardware、thick security sliding doors). MOQ: 1000 units. - Forend Dimension Modification: Custom width/height (e.g., W18xH160mm) for oversized sliding doors. MOQ: 2000 units. - Thumbturn Cylinder: Internal thumbturn for bathroom、bedroom sliding doors (no key needed for internal unlocking). MOQ: 500 units.
- OEM/ODM Services: - Private Label: Custom logos on forends、packaging, and user manuals (for hotel chains、regional door hardware distributors). MOQ: 2000 units. - Custom Lock Body Design: Modified hook length/angle for special sliding door tracks (e.g., curved sliding doors in luxury villas). MOQ: 3000 units.
Sliding Door Hook Lock - Production Process & Quality Control
D&D’s production process prioritizes precision、security, and durability—ensuring every DDML031 lock meets global quality standards:
- Material Sourcing & Testing: - Select SUS304/SUS316 stainless steel ingots from SGS-verified mills; test via X-ray fluorescence (XRF) to confirm chromium (18% min.) and nickel (8% min.) content—rejecting batches with impurities. - Conduct salt spray tests (100 hours for SUS304, 1000 hours for SUS316) and tensile strength tests (≥515MPa) to verify material performance.
- Precision Machining: - Forends & Strike Plates: CNC-machined to specifications (W16xH158xT2.5mm) with ±0.03mm tolerance; radius heads polished to 320-grit (SSS) or 1200-grit (PSS); PVD coating applied via vacuum deposition (2–3μm thickness, adhesion tested via tape pull). - Hook Bolts: Heat-treated to HRC 43–45 (hardness test); precision-ground for smooth movement; nylon inserts installed via ultrasonic welding.
- Assembly & Calibration: - Assemble lock components (body、hook bolt、cylinder、follower) in cleanrooms to avoid dust ingress; manually calibrate hook extension (10±1mm) and spring force (5±0.5N) for consistent performance. - Test key operation 15 times per lock to ensure smooth engagement/disengagement of the hook.
- Quality & Security Testing: - Functional Test: 100% of locks undergo 50 locking/unlocking cycles; check for jamming、silence, and hook alignment. - Security Test: Randomly select 5% of each batch for 600N pull force testing (5 minutes, no hook deformation) and anti-pry testing (10 minutes with professional tools). - Environmental Test: IP54 dust/water test for 24 hours; verify no internal corrosion or function loss.
- Packaging & Final Inspection: - Qualified locks are packed in anti-scratch PE bags (inside color/white boxes) with SUS304 screws、installation template、silicone oil, and user manual. - Conduct final visual inspection (finish uniformity、no scratches) and weight check (ensure no component missing) before shipping.
