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Dongnesi Deadbolt Door Lock Review: Secure and simple internal locking?

Deadbolt Door Lock, Round Internal Door Lock with Key, Single Cylinder Deadbolt, 35-50mm Zinc Alloy Security Gate Locks for Bedroom, Entrance Passage (Silver)
4.8
[Adjustable Latch Fit]  60/70mm latch fits 35–50mm thick doors; confirm door thickness before purchase.
[Multi-Room Compatibility]  Ideal for bedroom, bathroom, living room, hotel and passage doors.
[Durable Materials]  Zinc alloy body and copper cylinder resist rust and corrosion for longevity.
[Easy DIY Installation]  Installs quickly with a Phillips screwdriver; one-person setup in minutes.
[Keyed Deadbolt Security]  Deadbolt locks with key from inside or outside for reliable privacy and security.
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Interior door hardware designed to secure bedrooms, bathrooms and passageways while remaining easy to fit. Peace of mind follows from a robust finish and straightforward keyed locking for private spaces. Is Dongnesi Deadbolt Door Lock the right balance of sturdiness and convenience for your home?

⚡ At a Glance
  • Security Performance: Single-cylinder deadbolt with keyed operation for clear privacy control
  • Best for: Home interiors, hotel rooms and rental properties needing reliable privacy
  • Not ideal for: External entrance doors requiring heavy-duty, weather-rated security

Adjustable 60/70mm latch suits doors 35-50mm thick. Zinc alloy body and a copper lock cylinder improve corrosion resistance and longevity.


Dependable keyed security - with a single-cylinder deadbolt and copper cylinder

Single-cylinder deadbolt uses a keyed cylinder designed for locking operation from either side with a key, and the copper lock cylinder resists wear to maintain smooth turning.

Secure bedroom and hotel-room privacy with a mechanism that users describe as sturdy and reliable for everyday use.

Quick, one-person fitting - with an adjustable 60/70mm latch bolt

Latch bolt adjusts between 60mm and 70mm to match common internal locksets and is compatible with doors 35-50mm thick; installation requires only a cross-head screwdriver and can be completed by one person.

Ideal for DIYers or maintenance staff who need a fast, straightforward replacement or upgrade without specialist tools.

Resistant finish for longer life - with zinc alloy construction and a copper cylinder

Zinc alloy housing offers rust-proof and corrosion-resistant characteristics and higher surface hardness, while the copper cylinder reduces internal wear to prolong service life.

Suitable for rooms with occasional humidity and for properties where durable appearance and low maintenance matter.

✨ The 4 Key Reasons for Dongnesi Deadbolt Door Lock
  1. Fast installation - Installed in minutes by one person with a cross-head screwdriver
  2. Versatile fit - Works across common internal doors without extra hardware
  3. Attractive silver finish - Complements modern door frames and interior styles
  4. Trusted mechanical feel - Users report sturdy construction and reliable keyed operation
📋 Technical Details at a Glance
  • Category: Home Improvement - Door Lock
  • Brand: Dongnesi
  • Type: Single-cylinder deadbolt
  • Material: Zinc alloy body; copper lock cylinder
  • Latch bolt: 60/70mm adjustable latch bolt
❓ Frequently Asked Questions

Q: What door thicknesses will this fit?

A: Suitable for internal doors between 35mm and 50mm thick, using the adjustable 60/70mm latch bolt.

Q: Can the lock be operated from both sides?

A: Yes, the single-cylinder deadbolt can be locked from the outside or the inside using a key.

Q: Is special equipment needed for installation?

A: No special equipment is needed; installation can be completed by one person using a cross-head screwdriver.

🏆 Our Verdict

Suitable for homeowners, landlords and hoteliers seeking a practical internal lock with clear privacy control. Zinc alloy construction, a copper cylinder and an adjustable latch combine durability with easy fitting. User feedback highlights good value and sturdy build, suggesting sensible long-term utility for internal doors.