Does a Semi-iron Circular Tongue Lock Come with a Key or Use a Combination Mechanism
2026-06-08
When selecting a Semi-iron Circular Tongue Lock for cabinets, lockers, or toolboxes, the most common question is whether it operates with a traditional key or a combination dial. Ouyue, a trusted name in locking solutions, manufactures both versions to suit different security needs.
Keyed vs. Combination: A Quick Comparison
| Feature | Keyed Semi-iron Circular Tongue Lock | Combination Semi-iron Circular Tongue Lock |
|---|---|---|
| Access method | Physical key | Number dial |
| Key loss risk | High – lock becomes unusable | None – reset code via master override |
| Speed of access | Fast | Slightly slower (dialing) |
| Best use case | Shared facilities, schools | Personal lockers, gyms |
| Typical lifespan | 5–8 years | 3–6 years (mechanism wear) |
Most Ouyue keyed models include two nickel-plated keys. Combination models offer a 3‑digit resettable code.
3 FAQs About the Semi-iron Circular Tongue Lock
Q1: Can I convert a keyed Semi-iron Circular Tongue Lock into a combination lock?
No. The internal wafer and cam mechanism of a keyed lock is physically different from the disc‑stack combination system. You must purchase the desired type from Ouyue at the outset.
Q2: What happens if I lose the key to my Semi-iron Circular Tongue Lock?
For standard Ouyue models, a locksmith can impression a new key from the lock’s code stamped on the face. For master‑keyed systems, contact Ouyue with your batch number – replacement keys are available for a small fee.
Q3: How secure is the combination version against guessing?
Ouyue combination Semi-iron Circular Tongue Locks use a 10‑disc mechanism with 1,000 theoretical combinations. An automatic “lock‑out after 3 wrong tries” feature is available on premium models, preventing brute‑force attempts.
Final Recommendation
For high‑traffic areas where keys can be managed, choose Ouyue keyed Semi-iron Circular Tongue Locks. For personal use without key carry, the combination mechanism offers convenience. Both share the same semi‑iron housing for corrosion resistance.
Contact us at Ouyue for bulk quotes or technical drawings – our team responds within 24 hours to help you select the right Semi-iron Circular Tongue Lock for your project.
