• Bullet Points:
  Comfortable Door Lever Grip: The passage door lever provides a comfortable grip and protects the internal mechanism using a dust-proof design, ensuring prolonged usability. With 122mm handle length and 65mm lock base for comfortable grip, meeting large-scale replacement needs with a 12-box quantity
  Wide Door Compatibility: Lever door handle fits 35–53mm thickness, a latch adjustable in 10mm increments, from 60mm to 70mm, enhancing security and aesthetics for front, interior, or exterior doors while ensuring seamless integration with existing setups in various home environments
  Easy Installation Process: The passage door handle comes with a complete installation kit, including a handle base, lock tongue, strike plate, two keys, a dust cover, and six screws, allowing users to effortlessly replace old locks in minutes using just a screwdriver, while the included installation guide assures compatibility for both left- and right-handed doors, making it ideal for quick home upgrades
  Long-Term Durability: Featuring an aluminum alloy construction, each box weighs 610g. The door lever handle assures enduring reliability through years of daily use, enhanced by its smooth grip design and sturdy square lock feature, offering peace of mind for homeowners or property managers who value consistency and resilience
  Reliable Door Control Solution: Featuring a robust double-side unlocking system, these lever door handles allow exterior key-based security alongside interior twist-knob privacy settings, catering to everyday needs with efficiency and ease
  The Metal Entrance Handle with Square Panel is designed for both functionality and durability, making it ideal for various settings, including commercial spaces, and bathrooms. This heavy-duty handle set includes twelve pieces, ensuring you have enough for multiple doors.
  
  Specification:
  Product name: Lever Door Handle
  Lock Material: Aluminum Alloy
  Quantity: 12 boxes
  Fit Door Thickness: about 35mm-53mm/1.4in-2in
  Handle Length: about 122mm/4.8in
  Lock handle base: about 65mm/2.56in
  Latch adjustable: about 10mm/0.4in (from 60mm to 70mm/2.3in -2.7in)
  Unlock: Internally unlocked by turning a knob, externally unlocked by a key
  Each set includes a handle base, two keys, a dust box, six screws, a lock tongue, and a strike plate
  Weight per box: 610g/1.3 lbs (heavy-duty square door lock)
  Suitable for right-handed or left-handed doors
  
  Customer Urgent Measures:
  1. Stuck due to metal friction: Mechanical lubrication
  ① Spray graphite powder spray onto the lever and latch groove
  ② Open and close the lock repeatedly 5-8 times to help the lubricant penetrate
  ③ Wipe off excess oil to prevent dust absorption
  Note: Do not use regular motor oil (it easily attracts dust and forms sludge)
  2. Stuck due to door frame deformation: Clearance adjustment
  ① Loosen the set screws (requires a cross screwdriver)
  ② Apply 1 or 2 layers of insulating tape to the contacting surfaces between the door frame and the latch tongue
  ③ Re-tighten the screws and test for smooth opening and closing
  Limitation: Limited effectiveness when door frame deformation exceeds 2mm
  3. Difficulty inserting and removing the key: Urgent key solution
  ① Lightly sand the key teeth with fine sandpaper (600 grit or higher)
  ② Apply pencil lead powders (graphite lubrication) between the key teeth
  ③ Avoid forcible key rotation
  
  Packing list:
  Handle base *12
  24 *keys (any extras are for backup)
  Dust box *12
  Screws *72
  Lock tongue *12
  Door strike plate *12