Probrico Keyed Entry Door Knob with Lock Review
A keyed entry door knob from Probrico in a matte black finish, with a steel mounting square plate, an adjustable 60mm or 70mm latch, and a fit range of 35 to 45mm standard door thickness.
| Brand | Probrico |
|---|---|
| Color/Finish | Matte Black |
| Quantity | 1 pack |
| Latch size | 60mm (2-3/8 in) or 70mm (2-3/4 in) |
| Door thickness fit | 35 to 45mm (1-3/8 in to 1-3/4 in) |
| Mounting plate | Steel, square |
| Best for | Buyers needing a single keyed entry knob for a front door, bedroom or bathroom that fits standard door thickness |
Product Overview
Probrico positions this knob for doors where a key-based lock matters, naming front doors, bedrooms and bathrooms as the intended use cases rather than purely decorative interior doors. The knob and its included key are keyed differently from other units, each sold with its own distinct key set.
A steel mounting square plate backs the knob for strength, finished in matte black, which Probrico describes as smooth and comfortable to the touch while resisting visible fingerprints. The matte finish is positioned as fitting a variety of decorative styles rather than one narrow aesthetic.
Installation is designed to need only a screwdriver, with detailed instructions provided rather than requiring a locksmith or specialty tools. Probrico backs the knob with a stated return policy and a 24 hour response window for customer questions.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
Each unit keyed differently, suited to front doors, bedrooms and bathrooms.
Fits either a 60mm or 70mm backset measurement.
Square plate construction adds strength at the door.
Resists visible fingerprints while fitting varied decor styles.
Only a screwdriver is needed, with detailed instructions included.
Design and Build Quality
The latch is adjustable between 60mm, listed as 2 and 3/8 inches, and 70mm, listed as 2 and 3/4 inches, letting the same knob fit either common backset measurement. It is built to fit standard door thickness from 35 to 45mm, listed as 1 and 3/8 inches to 1 and 3/4 inches.
Construction pairs the knob mechanism with a steel mounting square plate for structural strength at the door, finished in matte black. Probrico states the matte finish both resists fingerprints and stays smooth and comfortable to the touch, intended to suit a range of decorative styles rather than clashing with existing door hardware.
As a keyed entry knob, security is the core functional feature, with each unit keyed differently from other Probrico knobs sold separately. The package is sold as 1 pack, covering a single door per purchase.
Performance in Everyday Use
For day to day use, the adjustable 60mm or 70mm latch is the feature that determines fit without needing a separate part for different backset measurements, and the stated 35 to 45mm door thickness range covers the sizing used on most standard interior and exterior doors.
Security performance centers on the keyed entry mechanism itself, positioned by Probrico as suited to rooms needing privacy and protection, specifically naming front doors, bedrooms and bathrooms as use cases where a keyed lock matters more than a simple privacy knob without a key.
Installation performance is kept simple by design, needing only a screwdriver and the included instructions rather than specialty locksmith tools, which matters for buyers replacing a single knob themselves rather than hiring installation help.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Latch adjustability | 60mm or 70mm adjustable latch | Listing states the latch size is 60mm (2-3/8 inch) or 70mm (2-3/4 inch) | 8.5 | A stated dual latch size covers the two most common backset measurements on residential doors |
| Door thickness fit | 35 to 45mm standard thickness | Listing states the knob fits all standard size doors of 35 to 45mm (1-3/8 inch to 1-3/4 inch) thickness | 8.4 | A stated thickness range confirms compatibility with standard residential door sizes |
| Mounting strength | Steel square mounting plate | Listing states a steel mounting square plate provides strength | 8.2 | A named mounting plate material supports the stated structural strength claim |
| Finish durability | Matte black, fingerprint resistant | Listing states the stylish matte black finish leaves no fingerprints and is smooth and comfortable to the touch | 8.0 | A stated finish property addresses day to day appearance after repeated handling |
| Lock security | Keyed entry, individually keyed | Listing states the entry door knobs are keyed differently and offer superior security to protect privacy | 8.3 | A stated individual keying approach confirms each unit functions as its own distinct lock |
| Installation ease | Screwdriver only, instructions included | Listing states no need to worry about installation, with a screwdriver as the only tool needed | 8.4 | A stated single-tool installation requirement lowers the barrier to a DIY install |
| Listed dimension data | 1 x 1 x 1 inches listed | Listed item dimensions are height 1 inch, length 1 inch and width 1 inch, a uniform figure across all three axes | 5.5 | A uniform 1 inch figure on all three axes reads as an unfilled template value rather than the knob's real measured size |
Who Should Buy It
- Front doors needing a keyed entry knob
- Bedroom or bathroom doors needing privacy and a key
- DIY installers wanting a screwdriver-only install
- Standard thickness interior or exterior doors
- Anyone needing a non-keyed privacy knob for an interior door without a lock
- Sold as a 1 pack, so multiple doors require separate purchases
- Keyed design is not suited to buyers wanting a simple privacy knob without a lock
- Only offered in the stated matte black finish on this listing
- Listed item dimensions are a placeholder figure rather than a meaningful knob size, so door clearance should be checked against the stated latch and thickness range instead
Full Specifications
How It Compares
| Feature | Probrico | Typical option | Higher-tier option |
|---|---|---|---|
| Lock type | Keyed entry with distinct keys per unit | Privacy knob, no key | Comparable keyed entry lock |
| Latch sizing | Adjustable 60mm or 70mm | Fixed single latch size | Comparable adjustable latch |
| Mounting strength | Steel square mounting plate | Lighter mounting plate material | Comparable steel mounting plate |
| Finish | Matte black, fingerprint resistant | Glossy finish, shows fingerprints | Comparable matte finish |
| Installation | Screwdriver only, included instructions | Requires additional specialty tools | Comparable simple installation |
Alternatives Worth a Look
A matte black, keyed entry door knob from Probrico with a steel mounting square plate, an adjustable 60mm or 70mm latch, and a fit range of 35 to 45mm standard door thickness, installed with just a screwdriver. It suits buyers needing a single keyed knob for a front door, bedroom or bathroom, with the main consideration being it is sold as a 1 pack, so multiple doors need multiple purchases.
Frequently Asked Questions
What latch sizes does it support?
60mm (2-3/8 inch) or 70mm (2-3/4 inch), adjustable, per the listing.
What door thickness does it fit?
Standard doors from 35 to 45mm (1-3/8 inch to 1-3/4 inch) thick, per the listing.
Does it come with a key?
Yes, each unit is keyed, and is keyed differently from other units, per the listing.
What tool do I need to install it?
Just a screwdriver, per the listing.
What finish does it come in?
Matte black, per the listing.
How many knobs come in this listing?
1 pack, per the listing.
What is the mounting plate made of?
Steel, in a square shape, per the listing.
This review is based on the manufacturer's stated latch sizing, door thickness compatibility, materials, finish and installation requirements as listed. It is editorial analysis of the stated specifications and features, not independent lab or hands on testing of this specific knob's lock security.