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Lok-N-Blok^TM

How It Works Shop Compare Reviews FAQ

The Ultimate Deadbolt Defender

Stop break-ins before they start.

Name: Lok N Blok Deadbolt Door Lock Defender
Brand: Lok N Blok
SKU: B08DLBGP35
Price: 14.98 USD
Availability: InStock

Lok-N-Blok Max is a deadbolt security device that locks your front door deadbolt in place in under 5 seconds — no screws, no drilling, no tools.

Shop Now — Save Up To 15%

$24.00 from $12.73 / door

Made in USA Lifetime warranty* 4.8★

Woman holding Lok-N-Blok Max deadbolt security device at front door

SAVE
UP TO
15%

A break-in occurs every 18 secondsRoughly a third happen through the front door.

Less than 5 seconds to installNo tools, no screws, and no damage to your door.

Helps as a child lockHelps to keep toddlers from opening a deadbolted door.

Watch First

See exactly how it works

How Lok N Blok Max helps to secure your deadbolt and how it helps to prevent break-ins.

Click to Play

Why It Works

Built to defend one job

No installation, no hardware store trip — just a fast, no-tools way to lock down your deadbolt and help to keep your family safer.

Lok-N-Blok Max deadbolt lock device, no-tools front door security

No Tools, Ever

Slides on and off by hand — no screws, no drilling, no marks left on your door.

Lok-N-Blok Max deadbolt device fits left and right handed door locks

Fits Either Direction

Works with both left- and right-handed deadbolts, no modifications needed.

Lok-N-Blok Max deadbolt security device for front and back doors

One For Every Door

Front door, garage side door, back door — cover the whole house.

How to measure your deadbolt lock for Lok-N-Blok Max door security device

Quick Check

Will it fit your door?

Lok-N-Blok Max fits most standard doors. Just measure from the center of your deadbolt knob to the center of your door handle — if it's 8" or less, you're good to go.

Note: not suitable for fully rounded knobs.

Whole-Home Bundle

One per door. Bundle & save.

Most households cover the front door, garage entry, and a back door — bundling saves the most per unit.

Single

$14.98/ unit

One Lok-N-Blok for your front door.

Add to Cart

Best Seller

2-Pack

$13.93/ unit

SAVE 7%

Front door + garage door — the most-ordered combo.

Add to Cart

Best Value

3-Pack

$12.73/ unit

SAVE 15%

Front door + Garage door + Back door

Add to Cart

See The Difference

Lok-N-Blok vs. the alternatives

	Deadbolt + Lok-N-Blok Max	Regular Deadbolt Alone
"Bump key" proof	✔	✘
Lock-picking proof	✔	✘
Stops 3D-printed copy keys	✔	✘
Protects against previous tenants/relationships with a key	✔	✘
Lifetime warranty*	✔	?

	Lok-N-Blok Max	Other Deadbolt Devices**
Easy to use	✔	?
No tools required	✔	?
No screws or chains	✔	✘
No altering of the door	✔	?
Portable	✔	?
Virtually unbreakable*	✔	✘
No moving parts, one-piece design	✔	✘
Made of ultra-strong ABS plastic	✔	✘

*Warranty covers manufacturing defects only — not damage from misuse, neglect, or alteration; original receipt required for claims. Lok-N-Blok Max is designed to be virtually unbreakable under normal use. **Based on other products with a similar function.

Click to Play

See It Installed

Three steps. No hardware store.

Turn Your Deadbolt to Locked

Works with the lock you already have — nothing to replace.

Slide Lok-N-Blok Over the Thumbturn

Fits snugly by hand, both left- and right-handed.

Done — Remove It Just As Fast

No residue, no marks. Bring it when you travel too.

As Seen On TikTok

People are showing their followers how Lok-N-Blok Max works — tap to watch.

Backed By The Details

Trusted by families nationwide

Lifetime Warranty*

Recyclable Materials

5-Star Rated

Made in the USA

Real Reviews

One extra layer of security

4.8

So Simple & Effective

This works perfectly — I feel much safer and secure. Super easy to use, and I didn't have to install anything on my door. We put one on the garage too.

HHeather W. · Verified buyer

Best Purchase for Peace of Mind

We had a run of break-ins in our area, so we bought this hoping to stay safe. Our doorbell camera caught someone at our door overnight — glad we had it on.

GGeorge & Sue · Verified buyer

We Love This Product

We didn't want anything screwed to our door or some ugly thing permanently attached. This was a no-brainer — we use it every day and got some for our parents too.

CChristel S. · Verified buyer

Before You Order

A few common questions

Lok-N-Blok fits standard residential deadbolt thumbturns, both left- and right-handed. Check our sizing guide if your turn-piece is decorative or oversized.

Not at all. It slides on and off without screws, adhesive, or drilling — nothing is altered on your door or lock.

Yes — it's designed for quick removal from inside the home, so it never traps you.

We recommend one per deadbolt-equipped door: front entry, garage side door, and any door you use as a child-safety barrier.