Door Knob with Lock and Key - Keyed Entry Round Ball Locking Knob

In this review of the Door Knob with Lock and Key, the bottom line is straightforward: this keyed entry round ball locking knob is best for homeowners or renters who want an affordable, easy-to-install privacy or entry solution for interior and light exterior doors. The primary reason to consider it is its all-metal construction and simple installation kit, which together deliver a secure-feeling latch and modern look without the complexity or cost of a professional lock replacement. The review examines fit, build, and everyday function based on product specs and user impressions.

Key Features

• All-metal construction: The zinc alloy build offers rust resistance and a sturdy feel that aims to last longer than basic plastic knobs.
• Keyed entry: Each knob locks with a supplied key, providing privacy and security for bedrooms, bathrooms, and light exterior doors.
• Easy installation: The set includes screws and clear instructions so a homeowner can install the knob without hiring a professional.
• Adjustable latch: The latch supports 2-3/8 in or 2-3/4 in backsets and fits doors 1-3/8 in to 1-3/4 in thick for compatibility with standard door openings.
• Modern finish: The satin nickel style delivers a contemporary look that blends with many interior decors.
• Level 3 certification: The lock meets Level 3 standards for durability and performance expected of residential door hardware.

Who It's For

This keyed entry door knob is a good fit for DIY-minded homeowners, landlords, and renters who need a convenient replacement for bedroom, bathroom, or light exterior doors and want a modern appearance without expensive hardware. It is especially useful where separate keyed knobs for multiple rooms are acceptable, and when a rust-resistant zinc alloy finish is desired.

Those who need high-security exterior locks, keyed-alike systems out of the box, or heavy-duty commercial hardware should look elsewhere. Also, if a nonremovable latch plate or specialized backset is required for an older or custom door, consider a dedicated locksmith or a higher-security deadbolt solution.

Pros & Cons

Pros

• Good value for money with an all-metal, rust-resistant zinc alloy construction.
• Clear, homeowner-friendly installation with included screws and instructions.
• Contemporary satin nickel finish that suits many interior styles.
• Adjustable latch fits common backsets and standard door thicknesses for broad compatibility.

Cons

• Some customers report mixed build quality and occasional lock functionality issues, so check each knob during installation.
• Each knob may be keyed separately rather than keyed alike, which can be inconvenient if you want one key for multiple doors.

Specifications

Product type	Keyed entry round ball door knob set
Finish	Satin nickel
Material	Zinc alloy, rust-resistant
Backset compatibility	2-3/8 in or 2-3/4 in
Door thickness	1-3/8 in to 1-3/4 in
Certification	Level 3 certified
Package quantity	8 pack

Our Verdict

For household projects that need a practical, attractive keyed entry knob, this model represents solid value: it combines an all-metal zinc alloy build, Level 3 certification, and an easy installation process. It is ideal for interior doors and light exterior use where convenience and cost matter, but buyers seeking keyed-alike convenience or the highest security levels should consider more specialized hardware.

Frequently Asked Questions

Will this fit my standard interior door?
Yes. The adjustable latch supports 2-3/8 in or 2-3/4 in backsets and fits doors 1-3/8 in to 1-3/4 in thick.

Are the knobs keyed alike?
Not necessarily; some customers report each knob is keyed separately, so expect separate keys unless specified otherwise.

Can I install it myself?
Yes. The set includes screws and instructions and is designed for DIY installation without a professional.