Most doors fail at the frame, not at the lock · review
The only listing on this shelf that devotes a whole bullet to telling you to measure before you buy.
The conclusion The only listing on this shelf that spends a bullet telling you to measure, and names four conditions to measure against: inward-opening, flush with the frame, a gap over 0.07 inches, and a frame that can be drilled. That last one matters more than it reads, because a hollow steel jamb will not hold any lock here. Ten dollars for one lock, no screw length published, and the two-pack on this shelf costs five dollars a lock.
No screw length. No alloy. No pack count. No test standard.
Which nothing else on this shelf does.
Check Door Fit Before Purchase, with four conditions under it.
Inward-opening. Flush with the frame. Gap over 0.07 inches. A drillable frame.
That is the right way round: these locks fail on fit far more often than on strength.
Recessed doors. Doors that sit proud. Doors with intumescent seals.
The latch bridges the gap between the door face and the frame face, so those two faces have to be in the same plane.
Out of plane, the slide binds or will not reach.
Hold a ruler across the closed door and the frame.
Which another listing here says outright.
Everything holding this lock is a screw into the frame face. A frame that cannot be drilled cannot hold it.
A hollow steel jamb gives a self-tapping screw thin sheet to bite, and it pulls out under load. Concrete and steel-faced jambs need different fixings entirely.
A magnet and a bradawl, before buying anything on this shelf.
Under two millimeters, which almost any door has.
The condition excludes tightly fitted and draft-sealed doors, not ordinary ones.
Two listings here say 0.07 and two say 0.08, which tells you it is a design minimum for the slide to pass rather than a measured tolerance.
Close the door and try a credit card at handle height.
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.
| Type | 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 |
|---|---|
| Fixings | 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 |
| Fit | Inward-opening single doors, flush with the frame, with a gap over 0.07 in and a drillable frame — stated, and set out in a bullet headed Check Door Fit Before Purchase. Excluded: outward-opening, double and non-flush doors, gaps under 0.07 in, and undrillable frames |
| Function | 800 lb of force claimed, twelve times stronger than a normal deadbolt — two figures which together imply a deadbolt failing at about 67 lb. No standard, method or laboratory named |
| Material | Metal, stated, with no alloy named |
| Installation | A power screwdriver and a drill, within five minutes, on the door frame, with a manual supplied |
| Operation | With the door locked, press the upper and lower grooves and pull horizontally to the fully unlocked position — stated as a quick unlock in any situation |
| Supplied | The pack count is not published, and the title describes a single lock |
| Preparation | A drillable frame is required, stated. It is the closest any listing here comes to naming a frame material besides the one that excludes steel outright |
| Amazon reference | B07R2C5GC7 |
| EAN | 0792990083254 |
More doors than people expect, and this is the only listing that states it as a condition. The latch bridges the gap between the door face and the frame face, so it needs those two faces in the same plane — a door that sits proud of its frame, or recessed into a recess, puts the slide at an angle and it will bind or not reach. Recessed and non-flush doors are common in older housing and on fire doors with intumescent seals. Hold a ruler across the closed door and the frame before ordering.
Because the whole lock is held by screws into the frame face, and a frame that cannot be drilled cannot hold it. WINONLY states the condition without naming materials; one listing on this shelf is blunter and excludes metal door frames outright, which is the real case — a hollow steel jamb gives a self-tapping screw thin sheet to bite and it pulls out under load. Concrete and steel-faced jambs need different fixings entirely. Test yours with a magnet and a bradawl before buying any lock on this shelf.
It is under two millimeters, so almost any ordinary door has it — the condition excludes tightly fitted and draft-sealed doors rather than typical ones. Two listings here give 0.07 in and two give 0.08 in, which tells you the dimension is a design minimum for the slide to pass rather than a measured tolerance. The practical check is to close the door and see whether a credit card slips into the gap at handle height; if it does not, this family of lock is not for that door.
Between security devices of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
| Model | Price | Type | Fixings | Fit | Function |
|---|---|---|---|---|---|
| WINONLY U95278 door reinforcement lock | $10 | 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 | 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 | Inward-opening single doors, flush with the frame, with a gap over 0.07 in and a drillable frame — stated, and set out in a bullet headed Check Door Fit Before Purchase. Excluded: outward-opening, double and non-flush doors, gaps under 0.07 in, and undrillable frames | 800 lb of force claimed, twelve times stronger than a normal deadbolt — two figures which together imply a deadbolt failing at about 67 lb. No standard, method or laboratory named |
| HIGHEVER DL4-01 door reinforcement lock | $10 | 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 | 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 | Inward-opening doors only — front, back, bedroom, balcony and apartment doors. The door has to be ABSOLUTELY FLUSH with the frame, stated in those terms. Excluded: outward-opening, sliding, double and French doors, garage doors, gaps under 0.08 in, and misaligned frames | Up to 800 lb of force, stated as twelve times stronger than a standard deadbolt — figures implying a deadbolt that fails at about 67 lb. No standard, no method, no laboratory |
| Jkrycyf 04 door reinforcement lock, 2-pack | $10 | 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 | 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 | 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 | 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 |
| EverPlus EPDL-2P door reinforcement lock | $17 | 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 | 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 | Any inward-swinging door, stated. NO gap figure, no excluded door types and no frame material appears, where the other four listings on this shelf all publish at least a minimum gap | 800 lb of force claimed against being kicked in, stated as twelve times stronger than a normal deadbolt — figures which together imply a deadbolt failing at about 67 lb. No standard, no method, no laboratory |
Details checked on October 8, 2026.
A ten-dollar single lock on a flush timber door, bought by someone who will measure first
Amazon reports what buyers took in the month before this page was last checked: at least 5,000.
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.
