The best window lock and keeper depends on your window style and the existing hardware: choose a cam-action sash lock for a matching sash-and-keeper setup, or an adjustable track lock to control how far a sliding window opens. The Andersen replacement is the most targeted choice for Andersen windows, while the keyed track lock suits buyers who want a key-operated option. Check your window’s dimensions and mounting pattern before ordering.
| Product | Best suited for | Key consideration |
|---|---|---|
| Window Sash Lock & Keeper for Andersen | Andersen hardware replacement | Confirm model and fit |
| Sliding Window Locks with Key | Adjustable, key-operated track locking | Measure track first |
| QCAA Cam-Action Sash Lock | Cam-lock replacement | Check mounting match |
| ZRFCXE Window Locks | Multi-lock sliding-window setup | Confirm track compatibility |
| 2PCS Cam Type Sash Lock | Vertical or horizontal sash windows | Check 2.08-inch hole spacing |
Window Sash Lock And Keeper For Andersen
Best for: Homeowners replacing sash-lock hardware on an Andersen window. The product name specifically identifies Andersen, making it a more focused starting point than a universal track lock when preserving an existing sash-and-keeper arrangement is the goal.
The supplied product details do not specify dimensions, finish, included fasteners, or compatible Andersen models. Compare the old lock’s shape and mounting points with the listing before choosing it. Avoid assuming that the Andersen name alone guarantees a fit across every window model.
Sliding Window Locks With Key
Best for: Buyers who want adjustable opening control and a key-operated lock for horizontal or vertical sliding windows. The listing describes two sets and says the locks can secure a window closed or hold it at a selected position, which can help limit the opening for ventilation.
The locks are aluminum alloy. Measure the track before ordering: the listed track height must exceed 0.48 inches and its width must be under 0.62 inches. This dimensional requirement is the main limitation; do not choose this option if your track falls outside those measurements or cannot be measured confidently.
QCAA Cam-Action Sash Lock
Best for: Buyers seeking a cam-action sash lock in a flat-black finish. The listing identifies this as a two-pack and names both the lock and keeper, so it is a relevant option when replacing a matching sash-lock assembly rather than adding a track stop.
The product name also states that it is made in Taiwan. Detailed measurements and material information were not provided here, so compare the hardware’s mounting pattern and dimensions with the existing parts before buying. It may not suit a window that needs a track-mounted adjustable lock.
ZRFCXE Sliding Window Locks, Four Pack
Best for: Buyers looking for several locks for horizontal or vertical sliding windows. The product name specifies a four-pack, making it a candidate for multiple windows or more than one locking point. The listing details provided do not state the material, track dimensions, or whether the locks are keyed.
Because compatibility measurements are not supplied, check the full product listing and compare the lock design with your window track before choosing it. This is less suitable than the keyed adjustable option if key operation or a defined track-size requirement is essential to your decision.
Two-Piece Cam-Type Sash Lock
Best for: Buyers replacing a cam-style sash lock on a vertical or horizontal sliding window. The two-piece set is white and uses a cam-action hook design. Its listed zinc-alloy construction has electroplated treatment, and the package includes stainless-steel screws.
The listing says it can be installed on left- or right-opening sashes and on aluminum, wood, or vinyl windows. Confirm the stated 2.08-inch hole spacing against your existing screw holes. Choose another option if the mounting distance does not match or if the window requires a different lock style.
Buying Guide: How To Choose A Window Lock And Keeper
Is your window a sash-lock or track-lock style?
A sash lock and keeper are paired parts that secure two window sashes together. A cam-action lock engages a keeper as the window closes. A track lock, by contrast, fits along a sliding window track and can limit movement. Identify the existing hardware before selecting a replacement; the two styles are not interchangeable by default.
What measurements should you check?
- For a replacement sash lock, compare the lock’s dimensions, shape, finish, and screw-hole spacing with the old hardware.
- For a track lock, measure the track’s width and height and compare them with the product’s stated requirements.
- Check whether the window opens vertically or horizontally and whether the lock accommodates the sash’s opening direction.
Do you need a fixed lock or adjustable opening control?
Choose a conventional sash lock when the goal is to secure the window when closed and the existing lock-and-keeper configuration matches. Choose an adjustable track lock when you want to hold a sliding window at a limited opening. A key-operated model may be preferable when keyed control is specifically required, but confirm its track fit first.
Does the number of locks matter?
Count the windows or locking points before choosing a pack. A two-piece sash-lock set may replace one assembly, while a four-pack can suit several positions if the locks fit those tracks. Do not assume that a larger pack will work with every window style.
Frequently Asked Questions
What is a window lock and keeper?
A window lock is the moving or locking part of the hardware. The keeper is the matching piece it engages to hold the sash closed.
Can a sash lock fit any sliding window?
No. Sash-lock fit depends on the window’s design, dimensions, and mounting pattern. Match the replacement to the existing hardware before ordering.
Can a track lock keep a window partly open?
Some adjustable track locks are designed to hold a sliding window at a selected position. Check the product’s instructions and measurements to confirm that feature and fit.
How do I know whether a lock will fit my track?
Measure the track’s inside dimensions and compare them with the product’s stated requirements. For the keyed option above, the track height must exceed 0.48 inches and its width must be under 0.62 inches.
Should I replace the keeper when replacing a sash lock?
Replace or retain the keeper based on compatibility and condition. A lock must engage its keeper correctly, so compare both parts and their alignment before installation.