Most doors fail at the frame, not at the lock · review
The cheapest lock per unit on this shelf, and the only one that tells you to mount it high and that a metal frame will not take it.
The conclusion Five dollars a lock is the lowest unit price on this shelf, and two of the things this listing says are things nobody else here says: a metal door frame will not take it, and mount it above the handle so a child cannot reach it and the load sits away from the deadbolt. Both are useful. It still publishes no screw length, excludes outward-opening doors, and repeats the 800 lb claim whose own arithmetic puts a deadbolt at 67 lb.
No screw length. No test standard. No certifying body.
The lowest on this shelf.
Ten dollars for two. The six-pack works out at five dollars thirty; the single units are ten each.
For two doors this is the cheapest correct purchase here.
Which only this listing tells you.
Metal door frames are excluded, stated, and a large share of American apartment entrances have steel jambs.
The latch is held by screws into the frame face. A hollow steel jamb gives a screw nothing to bite, and self-tapping screws in thin steel pull out under load.
A lock that pulls out is worse than no lock, because it was relied on.
At least four of the ten listings here say nothing about frame material at all.
The only placement advice on this shelf, and it is right twice.
High up, a toddler who can work a doorknob cannot reach a latch at adult shoulder height. That is the childproofing use these are sold for.
And against a kick, a restraint well away from the deadbolt spreads the load over more frame than two fixings in the same few inches of timber.
This shelf’s introduction is about exactly that.
Which is minor repairable damage, not none.
Eight screws into a jamb is eight holes. They are small and they fill.
What is true is that it comes off leaving the door and the existing locks untouched, which a replacement deadbolt does not.
Ask, as you would for a shelf bracket.
Like every listing here.
This shelf’s introduction calls it the single most consequential specification in this family.
Fit 70 to 80 mm (2.76 to 3.15 in) screws that reach the stud. Ten minutes, nothing, and it matters more than the alloy.
On sale at around $10 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on October 8, 2026. The live price is at the top of the page.
| Supplied | Two locks with eight screws, stated. At nine dollars ninety-seven that is about five dollars a lock, the lowest unit price on this shelf — a cent under the six-pack's five dollars thirty |
|---|---|
| Fixings | Eight screws, stated, with no length published in millimeters or inches. This shelf's introduction calls the screw length the single most consequential specification in this family, and no listing on this shelf gives one |
| Material | Premium rust-proof aluminum alloy, stated to resist corrosion |
| Type | A slide latch mounted on the frame, released by sliding towards the hinges. Not a bar, not a long strike plate, not a hinge bolt — none of the three load-spreading designs this shelf's introduction names |
| Function | 800 lb of force claimed, stated as twelve times stronger than a standard deadbolt. The two figures together imply a deadbolt failing at about 67 lb. No standard and no certifying body appears |
| Installation | Five minutes with the eight supplied screws and a power drill. Stated landlord-friendly and non-permanent, with no damage to apartment doors — the only lease claim on this shelf, and worth reading against the fact that fitting it means drilling a frame |
| Operation | Slide the lock towards the hinges and pull: a one-second release with no tools, stated as easier than a door guard or a chain lock |
| Fit | Most inward-swinging doors: apartment doors, bedrooms, basements and patio doors. Excluded: French doors, outward-opening doors, METAL DOOR FRAMES, and gaps under 0.08 in. It is the only listing on this shelf to exclude metal frames, which rules out a great many apartment entrances |
| Placement | Stated to be installed above doorknob height so that it stays out of children's reach while still blocking entry. No other listing here says where on the door to put it |
| Amazon reference | B0FXWF5SWT |
| EAN | 0762849639284 |
Because a large share of American apartment entrances have steel frames, and this is the only listing on the shelf that admits the lock will not go into one. The latch is held by screws into the frame face, and a hollow steel jamb gives a screw nothing to bite — self-tapping screws into thin steel pull out under load, and a lock that pulls out is worse than no lock because it is relied on. At least four of the ten listings here say nothing about frame material at all. Check yours with a magnet before ordering any of them.
Read that claim against the installation, which requires drilling the frame with eight screws. Nothing about eight holes in a jamb is non-permanent; they are small, they fill with filler, and most landlords will not care, but the honest description is minor repairable damage rather than none. The claim is still useful in one respect: this is a device that comes off and leaves the door and the existing locks untouched, which a replacement deadbolt does not. Ask the landlord, as you would for a shelf bracket.
Two reasons, and this is the only listing that gives either. High up it is out of a small child's reach, which is the childproofing use these locks are sold for — a toddler who can work a doorknob cannot work a latch at adult shoulder height. And against a kick, a second restraint placed well away from the deadbolt spreads the load over more of the frame than two fixings in the same few inches of timber. This shelf's introduction is about exactly that: spreading load rather than concentrating it.
Between security devices of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
| Model | Price | Supplied | Fixings | Material | Type |
|---|---|---|---|---|---|
| Jkrycyf 04 door reinforcement lock, 2-pack | $10 | Two locks with eight screws, stated. At nine dollars ninety-seven that is about five dollars a lock, the lowest unit price on this shelf — a cent under the six-pack's five dollars thirty | Eight screws, stated, with no length published in millimeters or inches. This shelf's introduction calls the screw length the single most consequential specification in this family, and no listing on this shelf gives one | Premium rust-proof aluminum alloy, stated to resist corrosion | A slide latch mounted on the frame, released by sliding towards the hinges. Not a bar, not a long strike plate, not a hinge bolt — none of the three load-spreading designs this shelf's introduction names |
| HIGHEVER DL4-01 door reinforcement lock | $10 | The pack count is not published, and the title describes a single lock | NOT PUBLISHED. This is the only listing on this shelf that does not state a screw count: four others say eight screws, four long and four short. No length appears here either, and this shelf's introduction calls that length the single most consequential specification in this family | Heavy-duty metal construction, stated, with no alloy named and no thickness | A slide latch mounted on the door frame, released towards the hinges. Not a bar spanning the frame, not a long strike plate, not a hinge bolt — none of the three designs this shelf's introduction names |
| WINONLY U95278 door reinforcement lock | $10 | The pack count is not published, and the title describes a single lock | Eight screws, four long and four short, stated as a choice. No length is published, and this shelf's introduction calls that length the single most consequential specification in this family | Metal, stated, with no alloy named | A 3-inch stop in metal, stated — a slide latch on the frame. Not a bar, not a long strike plate, not a hinge bolt, which are the three designs this shelf's introduction recommends |
| EverPlus EPDL-2P door reinforcement lock | $17 | The pack count is not published. The reference ends in 2P and the listing does not say how many locks are in the box, which on a shelf where packs run from one to six is the figure a price cannot be read without | Eight screws, four long and four short, stated to be chosen according to need. NO LENGTH IS PUBLISHED. This shelf's introduction calls the screw length the single most consequential specification in this family, and no listing on this shelf gives one | Metal construction, stated, with no alloy named. Two listings on this shelf name aluminum; this one names nothing, which leaves steel open and unconfirmed | A 3-inch stop in metal construction, stated — a slide latch on the frame engaging a base plate on the door. Not a bar, not a long strike plate, not a hinge bolt |
Details checked on October 8, 2026.
A ground-floor rental with a timber frame, where two doors need doing for ten dollars
Amazon reports what buyers took in the month before this page was last checked: at least 300.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for home security products and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Rim lock with thumbturn inside · key outside · 5-pin cylinder · doors 35–50 mm (1.38 to 1.97 in) · 32 mm (1.26 in) bore
ABUS's additional rim lock: a thumbturn inside, a key outside, and a five-pin cylinder. Stated for doors 35 to 50 mm (1.38 to 1.97 in) thick with recesses up to 21 mm (0.83 in), and needing a 32 mm (1.26 in) round hole for the cylinder.
Best for: Securing the closing edge of a front door against levering, on a door of ordinary thickness.
Rim lock, entrance doors · thumbturn inside, key outside · two-turn deadbolt · 2 keys
The 2130 is ABUS's entrance-door rim lock: a sturdy two-turn deadbolt, a thumbturn on the inside and a key from outside, supplied with two keys, in white.
Best for: The same job as the 2110 on an entrance door, where the inside hardware should stay white.
≈ $115
Powder-coated metal · 50 or 60 mm (2.36 in) backset · surface-mounted rim lock
A surface-mounted additional lock in powder-coated metal, with a universal 50 or 60 mm (2.36 in) backset, adding a second locking point to an apartment or house door.
Best for: An apartment door that has one lock and needs a second, without touching the existing one.
