N4DCL Four Digit Mechanical Combination Lock
Four Digit Mechanical Combination Lock
Click to enlarge
Delivery
Delivery Information
The approximate lead time is 5 Working Days.
Delivery to Mainland UK only, without any restrictions.
Our delivery times are; Monday - Friday 8am to 5pm.
We will deliver using the most economical method, using either our own vehicles or a carrier.
Goods may be palletised and delivered on an articulated vehicle.
The deliveries are kerb side only, you will need to arrange to unload the vehicle.
If there are any delivery restrictions / specific dates / times / dedicated deliveries, or FORS Registered deliveries; please contact the sales department as there may be an additional cost.
Features
N4DCL Four Digit Mechanical Combination Lock
The N4DCL mechanical combination lock is a secure, robust, and maintenance-free locking solution for lockers, cabinets, and enclosures. Designed for busy environments where reliability is essential, it offers smooth operation without keys or batteries.
With over 10,000 possible combinations, the four-digit code provides high security while allowing users to set and reset their own codes. This makes the N4DCL ideal for shared-use or frequently changing users.
Total Locker Service supplies the N4DCL as part of our mechanical locking range, delivering long-term performance in schools, leisure centres, offices, healthcare facilities, and more.
Its corrosion-resistant casing ensures suitability in wet or chlorinated areas, and the surface-mounted installation supports most metal or wooden locker types.
Reliable and User-Friendly
The N4DCL lock operates via a mechanical rotary dial and is fitted externally to the locker or door. Users simply rotate the dials to input their four-digit code, eliminating the need to carry a key or depend on electronic components.
It’s an ideal solution for facilities where users rotate regularly or require simple access control. The code can be reset easily by the user, and an optional override function is available for supervisors.
Core Features
- Four-digit mechanical code – secure, resettable, and easy to use
- Over 10,000 combinations – minimises risk of accidental access
- No keys or batteries – complete independence from power
- Durable zinc alloy construction – long-lasting and corrosion resistant
- Override option – available for site management
- Left- or right-hand mounting – non-handed for universal fit
Applications
This lock is suited for both retrofit and new installations. Use cases include:
- Leisure centres and swimming pools
- Gym and fitness club lockers
- Educational locker systems in schools and universities
- Hospital and NHS staff changing areas
- Secure storage in offices or industrial workplaces
Technical Specifications
- Body dimensions: 60 mm (W) × 40 mm (H) × 30 mm (D)
- Material: Zinc alloy body, optional black or chrome finish
- Operation: Mechanical rotary dial with four-digit code
- Fixing: Surface-mounted with twin-point screws (included)
- Operating temperature: –10°C to +50°C
- Override access: Optional key or tool-reset support
Advantages Over Digital Alternatives
The N4DCL excels in locations where simplicity and endurance are essential. Unlike digital locks, it does not suffer from battery failures, system resets, or electronic malfunctions.
It offers consistent, reliable operation over many years with no scheduled maintenance. As a purely mechanical system, it functions seamlessly in power outages or harsh conditions.
Installation Options
Total Locker Service provides full installation support. The N4DCL can be delivered as part of a locker order or retrofitted to existing enclosures.
We offer guidance on integration, including CAD support, layout planning, and compatibility with third-party systems. Locks are delivered ready for installation with mounting hardware.
Why Choose Total Locker Service?
With over 20 years of experience in secure storage solutions, Total Locker Service is a trusted partner for educational, leisure, and commercial sectors across the UK.
We supply locks in bulk, offer full lifecycle support, and deliver tailored advice on specification and deployment. Our stock levels ensure fast delivery and excellent service.
Place Your Order
The N4DCL Four Digit Mechanical Combination Lock is available now. Contact Total Locker Service for pricing, technical assistance, or installation support. We are here to help ensure your locking system is secure, simple, and scalable.