# WINONLY U95278 Door Reinforcement Lock, Aluminum, Childproof, 800 lb Resistance Add keyless reinforcement to compatible inward-opening doors with the WINONLY U95278 aluminum lock and its spring-loaded child-safety design. - [Original product page](https://www.ofertitastop.com/us/product/winonly-u95278-door-reinforcement-lock-aluminum) - [View offer](https://www.ofertitastop.com/us/visit/winonly-u95278-door-reinforcement-lock-aluminum) - Market: US - Language: en-US - Currency: USD - Product updated: 2026-11-02T23:48:38.280Z - Brand: WINONLY - Model: Door Lock U95278 - MPN: Door Lock U95278 - EAN / GTIN: 792990083254 - SKU: ofertitastop-us-149244 - Category: Hardware > Locks & Keys > Locks & Latches - Source store: amazon US - Active deal: Yes - Price: 9.99 USD - Previous price: 11.99 USD - Discount: 17% - Rating: 4.6 / 5 - Reviews: 5355 Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store. ## Description For added security on an inward-opening front, bedroom, or patio door, the WINONLY U95278 adds a second layer of reinforcement at the door frame. Its spring-loaded design also helps keep children from opening the door to visitors or wandering outside. Made from aluminum with a black anodized finish, this keyless lock is a compact way to reinforce a single door without relying only on its existing lock. It is designed to withstand up to 800 lbs of force. The package includes the reinforcement lock and eight screws: four long and four short. Choose the screw length that suits your installation, and use the included instructions as a guide. ## Highlights This 3-inch door reinforcement lock is intended for inward-opening doors, including apartment, front, back, bedroom, and patio doors. Its added frame-mounted barrier provides another security measure when the door is closed, while the spring-loaded mechanism adds a child-safety function. It can be unlocked by hand, so there is no key to manage for everyday use. The aluminum construction and compact rectangular profile make it a practical alternative to relying on a basic latch alone. Customers commonly praise the lock’s straightforward installation and operation, and some appreciate its neater appearance compared with slide bolts or chains. These are customer impressions, while the specific door fit and installation requirements are what determine how it works in your home. ## Practical tips Check the door and frame before installation. This model is made for a single, inward-opening door that sits flush with the frame, has a gap greater than 0.07 inches, and has a frame that can be drilled. It is not designed for outward-opening or double doors, non-flush doors, gaps under 0.07 inches, or frames that cannot be drilled. Installation uses a drill and power screwdriver. The eight included screws come in two lengths, letting you choose between the four long and four short screws for the setup. Position the lock on the door frame and follow the included installation manual. Taking measurements first helps you confirm the fit and plan where the lock will sit. ## Getting the most from it Use the lock as an additional reinforcement when you want a physical barrier at an inward-swinging door, such as at night or when children are at home. Once the door is locked, press the upper and lower grooves and pull horizontally to move the mechanism to the fully unlocked position. Keeping that simple release action in mind makes it easier for household members to operate the lock when needed. The design is particularly useful for households looking for both door reinforcement and a childproofing measure in one frame-mounted device. As with any child-safety lock, it is an added measure rather than a substitute for supervision. ## Before you decide **Which doors does the U95278 fit?** It is intended for single, inward-opening doors that are flush with the frame, with a gap greater than 0.07 inches and a drillable frame. Measure the door and gap before installation. **What comes with the lock?** The package includes one home security door reinforcement lock and eight screws: four long and four short. An installation manual is provided for guidance. **Does it use a key?** No. It is a keyless lock with hand-operated grooves for moving the mechanism to the unlocked position. ## When it makes sense Choose the WINONLY U95278 when you want a compact, keyless reinforcement for a compatible inward-opening door, with a spring-loaded child-safety function as an added benefit. Its frame-mounted design, included screws in two lengths, and manual release make it suited to homeowners or renters seeking a practical extra layer at a front, bedroom, or patio door. ## Images ![WINONLY U95278 Door Reinforcement Lock, Aluminum, Childproof, 800 lb Resistance — 1](https://www.ofertitastop.com/i/L3szZBFyeVyZ484ShEbZSNS70L-7dDXHum4413joH2a6hktM1XVotNYOI7wy792bv-mdcWIdPuaX_qtVTFkPJ0XFzv0oeDqIACQDThXziABJPZfCNns3c2LpbQ.jpg) ![WINONLY U95278 Door Reinforcement Lock, Aluminum, Childproof, 800 lb Resistance — 2](https://www.ofertitastop.com/i/CrEXqtFexaL1Uufw6Q7Lg4QV2UxsTaufc_nu73VxS7zVKupFkdtUek90Z3zwkTYo6ecZEeww1ydyzMagZ3135l_VoiLJolC957MhFI0KkuqnbpOWV6oL57B47A.jpg) ![WINONLY U95278 Door Reinforcement Lock, Aluminum, Childproof, 800 lb Resistance — 3](https://www.ofertitastop.com/i/Wyh-E4gd8lpRoSsfStTQ2vgbhWqoPSU5fHo2yvd0yOe5jEJ_p26ej2dBv7H4XHwDtYNrUJD9qbR036b7hyqgIOth6THYvC7rv8zWRnMDlDIaxLrfh1cd8DIreg.jpg) ![WINONLY U95278 Door Reinforcement Lock, Aluminum, Childproof, 800 lb Resistance — 4](https://www.ofertitastop.com/i/_NzH9zUJJ4TTOlpnU-7GiyLqAp45l4OiLv_Mr6ay-PWYhe0GBukKJ0y95AAyezAStrR0-8B3bUYApojHYMs0BB73FkQmyJMk36ZxUpdeJdQb8MkJD_uJlt0_gQ.jpg) ![WINONLY U95278 Door Reinforcement Lock, Aluminum, Childproof, 800 lb Resistance — 5](https://www.ofertitastop.com/i/MjRapvMzGs1RZ22l1-SzWU7B4tI9ITEXE8JpiV4cy6XqSYUx82iKVMG38pqSthdi5WuWZxML3TWide8zMHa0JDGDao3XLPKwkA9VnGAqH5FOSSzB38FGYWuV0A.jpg)