Plustool 3-Pack Matte Black Keyed-Alike Door Knob and Deadbolt Set

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Product guide

Plustool 3-Pack Matte Black Keyed-Alike Door Knob and Deadbolt Set

Keyed-Alike: The Plustool 3-pack door lock set pairs round keyed-entry knobs with single-cylinder deadbolts in a matte black finish. The listing says the sets use the same key and fit doors 1-3/8 to 1-3/4 inches thick, with adjustable latches for two backsets.

At a glance

Each combo is described as a keyed-entry knob paired with a single-cylinder deadbolt. The deadbolt uses a key outside and a thumb turn inside.
The listing says the knobs and deadbolts are keyed alike, so one key can operate both and the other sets in the pack.
The latch is adjustable for 2-3/8-inch or 2-3/4-inch backsets, and the locks are described as reversible for left- or right-handed installation.
The manufacturer claims a cycle life exceeding 250,000 and describes a five-pin brass tumbler cylinder. These are listing claims, not independently verified results.

Price

$35.98Save 28%

Reference price: ~~$49.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

Keyed-alike operation can reduce the number of keys needed for the knobs and deadbolts.
Three-piece pack is suited to replacing hardware on multiple doors that use the same key.
The listed adjustable latch covers two common backsets, and reversible handing offers flexibility during installation.

Cons

The listing specifies that the latch plate is unremovable, which may limit compatibility with a door prepared for a different plate arrangement.

Technical specifications

18 specifications

Identity and design
Brand	Plustool
Lock type	Deadbolt
Keying	keyed_alike
Form factor	Round
Color	Matte Black
Finish	Matte Black Finish
Style	Modern
Number of pieces	3

Dimensions and installation
Dimensions listed	10 x 3 x 3 inches
Weight listed	3.05 kg
Door thickness	1-3/8"(35mm) to 1-3/4" (45mm)
Adjustable latch backset	2-3/8"(60mm) or 2-3/4"(70mm)
Handing	reversible
Latch plate	unremovable

Materials and construction
Material listed	Stainless Steel
Cylinder	5 pins brass tumbler cylinder
Cycle claim	exceeds 250,000 cycles

Included components
Included components listed	keys, installation instructions

What to know before buying

Confirm the door thickness and backset before buying. The listing gives a 1-3/8 to 1-3/4-inch door range and 2-3/8- or 2-3/4-inch latch settings. The latch plate is described as unremovable.

What’s in the box

Included

Keys
Installation instructions

Who is it for?

A good fit for

Households replacing several entry knobs and deadbolts that want them operated with the same key.
Buyers seeking a round, matte black knob-and-deadbolt combination for doors within the listed thickness and latch dimensions.

Less suited to

Buyers whose door requires a removable or differently configured latch plate.
Anyone needing a lock system with electronic, keypad or smart-home operation, which is not listed here.

Plustool 3-Pack Matte Black Keyed-Alike Door Knob and Deadbolt Set · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 766 ratings

5 stars64%64%
4 stars12%12%
3 stars9%9%
2 stars4%4%
1 star11%11%

Customer feedback highlights appearance, perceived value, ease of installation and having several keys as positives. Reports about build quality and reliability are mixed, and some customers report that locks break easily. That durability concern matters for buyers relying on these for frequently used exterior doors. The listing's cycle-life and construction claims do not resolve these reported differences.

Positive themes

Customers describe installation as easy and appreciate receiving several keys.
Customers praise the appearance, with one noting it looks expensive.

Negative themes

Some customers report that the locks break easily.

Mixed feedback

Build quality receives mixed feedback, with some describing the set as solid and others as poorly made.

Frequently asked questions

Do the knobs and deadbolts use the same key?

The listing describes the sets as keyed alike, with the same key operating the entry knob and deadbolt.

What door sizes does the listing say this fits?

It specifies doors 1-3/8 to 1-3/4 inches thick and an adjustable latch for 2-3/8-inch or 2-3/4-inch backsets. It also says the latch plate is unremovable.

Can the lock be installed on either side of the door?

The manufacturer says the locks are reversible for left- or right-handed installation.