Mechanical Combination Door Lock Keyless Battery-Free Zinc Alloy
High Quality
Free US Shipping
Hassle Free Returns
Eliminate lost keys with smooth, keyless door security
Secure doors without keys or batteries — sturdy zinc alloy, fits most standard doors
Why is this Mechanical Combination Lock perfect for you?
✔ Keyless combination system prevents losing keys: The mechanical combination lock uses a keyless system allowing you to set a personal code once, eliminating the need to search for or replace keys. This ensures constant access without the risk of lost or stolen keys, providing reliable daily security.
✔ Smooth-turning rotary dial for easy operation: Featuring a smoothly operating three-digit rotary dial, the lock is simple to use with one hand. This design ensures quick and effortless locking and unlocking, enhancing convenience without the need for additional tools or power sources.
✔ Sturdy zinc alloy construction fits most standard doors: Constructed from durable zinc alloy, the lock is designed for continuous use and fits most standard doors without modification. Available in silver and black finishes, it matches various door styles while providing robust security.
Specifications
Material: Zinc alloy
Lock Type: Mechanical 3-digit rotary combination lock
Compatibility: Fits standard doors
Available Colors: Silver, Black
Frequently asked questions
Quick answers about ordering from Couje. More detail on our full FAQ page.
How much does shipping cost, and how long does it take?
Shipping is free on every order — no minimum. Orders are typically delivered within 4–12 business days (processing included), and every order includes tracking. Full details are in our Shipping Policy.
What is your return policy?
You can return items within 30 days of delivery. Once your return is received and inspected, we process your refund to the original payment method. See our Return & Refund Policy for the full process.
How do I track my order?
As soon as your order ships, we email you a tracking number. You can follow your delivery at any time on our Track Your Order page.
How can I reach customer service?
Email us at support@couje.com or use our contact form. Our team is available Monday – Friday: 09:00 AM – 05:00 PM EST and replies within 24 hours. Saturday – Sunday: closed.