Plustool 4-Pack Matte Black Keyed-Alike Door Knob and Deadbolt Sets

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Product guide

Plustool 4-Pack Matte Black Keyed-Alike Door Knob and Deadbolt Sets

Sets: Plustool’s four-pack keyed-alike door lock set pairs round entry knobs with single-cylinder deadbolts. It is aimed at buyers outfitting several doors who want one key to operate each knob and deadbolt. The listing describes a matte black stainless-steel finish and reversible installation, while customer feedback is divided on durability.

At a glance

Listing describes each set as a keyed entry knob paired with a single-cylinder deadbolt, with key access outside and a thumb turn inside.
The manufacturer says the locks are reversible for left- or right-handed doors and that installation instructions are included.
An adjustable latch is described for two backsets. The listing notes that the latch plate is not removable.

Price

$42.98Save 20%

Reference price: ~~$53.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Keyed-alike operation means one key is intended to work with the included knobs and deadbolts, reducing the number of keys to carry.
A four-pack can outfit multiple doors with matching round, matte black hardware.
The maker claims screwdriver-only installation and reversible handing, which may simplify fitting doors of either orientation.

Cons

Customer feedback raises a durability concern, with reports that some locks break easily.
Feedback on build quality is mixed, so buyers prioritizing long-term reliability should weigh that uncertainty.

Technical specifications

14 specifications

Identity
Brand	Plustool
Model	cad8c3c7-70fa-410c-bcb0-634367a3b912

Lock and finish
Lock type	Deadbolt, Knob
Finish	Matte Black Finish
Material listed	Stainless Steel
Form factor	Round
Style	Classic,Modern

Dimensions and installation
Dimensions listed	10 x 8 x 6 inches
Weight listed	3.95 kg
Door thickness claimed	1-3/8"(35mm) to 1-3/4" (45mm)
Adjustable latch backset claimed	2-3/8"(60mm) or 2-3/4"(70mm)

Pack and use
Pieces listed	4
Recommended uses	Residential Doors, Commercial Doors
Keying	Keyed alike

What to know before buying

Listing details to confirm

The listing claims keyed-alike sets, stainless steel, a 250,000-cycle rating and five-pin brass cylinders, but these are manufacturer claims rather than independently verified performance. Confirm compatibility with the door, backset and fixed latch plate before purchasing.

What’s in the box

Included

Deadbolt
Knob
Lock
Mounting screws
Latch

Who is it for?

A good fit for

Buyers fitting several residential or commercial doors who want matching matte black knob-and-deadbolt hardware.
Households seeking keyed-alike entry hardware with a key outside and an interior thumb turn.

Less suited to

Buyers whose door requires a removable latch plate or a backset outside the listed options.
Buyers who need established durability or independently verified lock-performance ratings.

Plustool 4-Pack Matte Black Keyed-Alike Door Knob and Deadbolt Sets · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 771 ratings

5 stars65%65%
4 stars12%12%
3 stars9%9%
2 stars3%3%
1 star11%11%

Customer feedback highlights ease of installation, appearance and having several keys as positives. Build quality and reliability draw mixed reports, including concerns that locks break easily. For buyers installing these on frequently used exterior doors, that reported durability concern matters more than the listing’s unverified cycle-life claim. Overall ratings skew positive, but do not establish how long the locks will last.

Positive themes

Customers praise ease of installation, appearance and the number of keys supplied.
Some customers describe the set as good value.

Negative themes

Some customers report that the locks break easily, raising concerns about durability.

Mixed feedback

Build quality receives mixed feedback, with some customers finding the locks solid and others describing them as poorly made.

Frequently asked questions

Do the knob and deadbolt use the same key?

The listing says the sets are keyed alike and claims one key operates the knob and deadbolt. Confirm the selected package has the intended matching keying.

What door dimensions does the listing say the set fits?

It claims compatibility with doors 1-3/8"(35mm) to 1-3/4" (45mm) thick and an adjustable latch for 2-3/8"(60mm) or 2-3/4"(70mm) backsets. The latch plate is described as non-removable.

Can the lock be installed on a left-handed or right-handed door?

The manufacturer says the locksets are reversible for either handing and that instructions are included.

What do customers report about quality and durability?

Feedback is mixed on build quality. Customers report ease of installation and favorable appearance, but some say locks break easily, so longevity is a meaningful consideration.