Window Lock / Security Lock with Key for Windows & Sliding Doors - Silver

Window Lock / Security Lock with Key for Windows & Sliding Doors - 40 x 25 mm Aluminum Alloy Sliding Door and Window Stop with Keyed-Alike Security

Secure every sliding window or patio door in seconds with this compact limiter safety lock. Machined from corrosion-resistant aluminum alloy, the 40 mm × 25 mm block clamps firmly onto the track to restrict travel and block forced entry. A built-in key cylinder lets you lock or release the stopper as needed, while the keyed-alike design means one key opens any lock of the same model—perfect for homes, offices or warehouses that use multiple units.

Key Features & Specifications
- Heavy-duty aluminum alloy body resists rust, sawing and tampering
- Compact footprint: 40 mm length × 25 mm width; unobtrusive on window tracks
- Keyed-alike cylinder: one key operates all locks of the same batch for quick access
- Through-hole allows optional secondary pin or cable for extra anti-theft protection
- Adjustable clamp fits most residential and commercial sliding tracks
- Anti-slip inner pads prevent scratches and keep the lock firmly in place
- Finish: brushed; includes two brass keys and installation Allen wrench

Ideal Examples of Usage
- Prevent ground-floor patio doors from being forced open more than a few centimeters
- Child-proof upstairs bedroom windows by limiting how far they slide
- Secure shopfront display cases after closing hours without bulky padlocks
- Block sliding glass panels in server rooms to protect sensitive equipment
- Use multiple keyed-alike locks across hotel balcony doors for streamlined housekeeping access

Why This Lock Is the Perfect Buy
Traditional stick-in-the-track bars loosen over time, while complex keyed handles cost far more to replace. This lock blends tool-steel strength with pocket-sized convenience and installs in under a minute—no drilling, no permanent marks. The keyed-alike option simplifies key management, making it an ideal bulk solution for landlords and facility managers.

Interesting Facts About Sliding-Track Security
- Over 30 % of residential break-ins occur through unlocked or poorly secured sliding doors.
- Aluminum alloy delivers twice the tensile strength of common zinc alloys at similar weight.
- Limiter locks add a secondary barrier without interfering with built-in latches, layering security.
- Keyed-alike systems reduce keyring clutter and cut rekeying costs when multiple locks are needed.
- Compact track stops allow partial ventilation while keeping the opening too small for intruders.

Upgrade your sliding doors and windows with this all-metal limiter lock and enjoy peace of mind without bulky hardware or complicated installs.

Packing: Bulk