Most doors fail at the frame, not at the lock · review
Six locks for thirty-two dollars, which is the only way on this shelf to do every door in a house at once.
The conclusion Six locks for thirty-two dollars is the real argument here — about five dollars thirty each, which no single unit on this shelf approaches, and enough to do every inward-opening door in a house in one afternoon. The exclusion list is the fullest here, so you can check the fit before ordering. Like all five on this shelf it publishes no screw length, excludes outward-opening doors, and repeats an 800 lb claim whose own arithmetic implies a 67 lb deadbolt.
No screw length. No test standard. No certifying body.
Which is the whole case.
Thirty-two dollars does a front door, a back door, a patio door and three bedrooms.
The singles on this shelf are ten dollars each. The two-pack is about thirty-five cents a lock cheaper than this box — over three separate orders.
For one door, this is the wrong box.
Four long, four short, and no number.
This shelf’s introduction is blunt: the single most consequential specification in this family is the length of the screws in the box.
Seven listings on this shelf say “4 long and 4 short”. Not one publishes a length — not in millimeters, not in inches.
So buy the box and then do what the buying tip says: fit 70 to 80 mm (2.76 to 3.15 in) screws that pass through the frame into the stud behind it. Ten minutes, and it does more than the hardware it holds.
Is sixty-seven.
The listing claims 800 lb of resistance, and that this is twelve times an ordinary deadbolt.
Their own two numbers therefore put a deadbolt at about 67 lb — the weight of a child. A deadbolt in sound timber does not fail at 67 lb.
No standard, no method, no laboratory is named. Every listing on this shelf repeats both figures.
The three the shelf actually recommends.
This shelf’s introduction names a bar spanning the frame, a long strike plate reaching the stud, and hinge-side bolts for the edge nobody reinforces.
This is a slide latch on the frame at handle height. So are the other four here.
Nothing on this shelf protects a hinge.
On sale at around $32 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 | Six locks, accessories and an installation manual, each lock with eight screws — four long and four short. Six is the largest pack on this shelf and works out at about five dollars thirty per lock |
|---|---|
| Fixings | Eight screws per lock, four long and four short — stated. NO LENGTH IS PUBLISHED, in millimeters or inches, and this shelf's introduction calls the length of the screws in the box the single most consequential specification in this family. No listing on this shelf publishes one |
| Material | Thickened aluminum alloy — stated. Aluminum rather than steel, which is lighter, does not rust, and shears at a lower load than steel of the same section |
| Type | A slide latch that mounts on the door frame and engages a plate on the door. It is not a bar spanning the frame, not a long strike plate reaching the stud, and not a hinge bolt — the three load-spreading designs this shelf's introduction names. Nothing on this shelf is any of the three |
| Function | 800 lb of force claimed, stated as twelve times stronger than an ordinary deadbolt. Those two figures together imply a deadbolt failing at about 67 lb. No test standard, no method and no certifying body is named |
| Operation | Finger grooves and unlock arrows: pinch top and bottom, slide towards the hinges, pull outward. No tools, stated as a quick release in an emergency |
| Installation | A drill and a power screwdriver, with a step-by-step manual — mark, drill, secure. Stated as minutes per lock |
| Door thickness | Not applicable: the lock mounts on the face of the frame rather than through the door. What matters instead is the gap, and a door-to-frame gap under 0.07 in is excluded — stated |
| Fit | Inward-opening doors only. Explicitly excluded: French double doors, garage doors, outward-opening doors, gaps under 0.07 in and misaligned frames — the fullest exclusion list on this shelf |
| Amazon reference | B0GGCG5G39 |
| EAN | 0768556981524 |
Replace them, and this shelf's buying tip is precise about why: swap the supplied screws for 70 to 80 mm (2.76 to 3.15 in) ones that pass through the frame and into the stud behind it. It costs nothing, takes ten minutes, and does more than the hardware it holds. This matters more than any claim on the page because a forced door fails where the timber around short screws splits — the lock leaves with the splinters, whatever it was rated at. No listing on this shelf publishes a screw length, so you cannot tell whether the long ones are 40 mm (1.57 in) or 25.
For a house, yes; for an apartment, no. Six inward-opening doors at five dollars thirty each is the simplest way on this shelf to fit a front door, a back door, a patio door and three bedrooms in one purchase, and the per-lock price beats every single unit here — though the two-pack on this shelf is about thirty-five cents a lock cheaper over three orders. If one door needs doing, the two-pack on this shelf is a dollar cheaper in total and the single units are ten dollars. Buying six to use one is the error this listing invites.
Nothing checkable, and the arithmetic is worth doing. The listing claims the lock withstands 800 lb and that this is twelve times stronger than an ordinary deadbolt, which implies a deadbolt failing at about 67 lb — roughly the weight of a child. A deadbolt in sound timber does not fail at 67 lb. Either the comparison is to the screws in a standard strike plate rather than the bolt, or the figure is decoration. Every listing on this shelf repeats both numbers and none names a standard, a method or a laboratory.
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 |
|---|---|---|---|---|---|
| ATZNZIK NUM0098 door reinforcement lock, 6-piece set | $32 | Six locks, accessories and an installation manual, each lock with eight screws — four long and four short. Six is the largest pack on this shelf and works out at about five dollars thirty per lock | Eight screws per lock, four long and four short — stated. NO LENGTH IS PUBLISHED, in millimeters or inches, and this shelf's introduction calls the length of the screws in the box the single most consequential specification in this family. No listing on this shelf publishes one | Thickened aluminum alloy — stated. Aluminum rather than steel, which is lighter, does not rust, and shears at a lower load than steel of the same section | A slide latch that mounts on the door frame and engages a plate on the door. It is not a bar spanning the frame, not a long strike plate reaching the stud, and not a hinge bolt — the three load-spreading designs this shelf's introduction names. Nothing on this shelf is any of the three |
| 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 |
| 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 |
| 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 |
Details checked on October 8, 2026.
A whole house or a small block of apartments, where six inward-opening doors need the same latch
Amazon reports what buyers took in the month before this page was last checked: at least 50.
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.
