Product overview

The ZOO 5L Dead Lock range provides a dependable and cost-effective security solution for timber doors in residential and commercial properties. Available in both 64mm and 76mm case sizes, these mortice deadlocks feature a robust 5 lever locking mechanism designed to provide reliable protection for external and internal doors where enhanced security is required.

Supplied complete with matching brass finish forends and strike plates, these locks offer a traditional and decorative appearance that complements brass door furniture and classic architectural hardware. Their durable construction ensures smooth operation and dependable performance in everyday use.

The 64mm version is ideal for standard door installations, while the 76mm version offers a larger backset, positioning the keyhole further from the edge of the door for improved usability and visual balance.

Product Specifications

  • Brand: ZOO Hardware
  • Product Type: Mortice Deadlock
  • Lock Type: 5 Lever Deadlock
  • Available Sizes: 64mm & 76mm
  • Finish: Brass
  • Includes: Lock Case, Forend, Strike Plate and Keys
  • Suitable For: Timber Doors
  • Application: Residential & Commercial Use

Ideal For

  • Traditional front doors
  • Period property renovations
  • Timber entrance doors
  • Residential properties
  • Commercial premises
  • Heritage refurbishment projects
  • Brass door furniture installations

Why Choose the ZOO 5L Dead Lock?

The ZOO 5L Dead Lock combines trusted 5 lever security with a classic brass finish, making it an excellent choice for traditional and decorative door installations. Available in both 64mm and 76mm sizes, it provides flexibility for replacement and new-build projects while delivering dependable day-to-day security and a coordinated appearance with brass door furniture.

Delivery & Returns

How much is delivery?

UK Mainland Delivery is £2.99 on all items no matter how many you order!

Northern Ireland, Scottish Highlands, Channel Islands £6.00.

We do not offer International Delivery (Ireland, France, Spain etc).

When will my order be dispatched?

Orders before 3pm (Monday to Friday) are usually dispatched same day but may take up to 24 hours.

When will I receive my item?

We ship on 2 working day courier. Fully Tracked. Tracking will be emailed on dispatch. 

Special order items such as keyed alike locks will take longer to dispatch. Please refer to product description for lead times. 

I haven't received my item?

Please email us your name, order number and date of purchase.

We prefer email as it allows us time to research and respond.

Returns Information

We operate a 30 day refunds and return policy. 

If you change your mind you must return the product back to us within 30 days of delivery

Please include a copy of your invoice and a note stating reason for return. 

Additional keys, locks keyed alike or built to code are non refundable as they are personalised made to order goods.

Any refund, which is due to a fault or other defect, will include a refund of the applicable delivery charges otherwise not. 

It is the buyers responsibility to arrange the return of goods to us. We do not offer a collection service for returning items. 

Items must be returned including original product packaging and accessories.

We reserve the right to refuse any returns that do not comply with this policy.

Please post returns to the following address:

Home Secure (Online)

Unit 5, Brookfield Drive

Liverpool, L9 7AJ

United Kingdom

Frequently Asked Questions

The main difference is the case size and backset. The 76mm version positions the keyhole further from the edge of the door than the 64mm version.

A 5 lever deadlock offers enhanced security and is commonly used on entrance doors where reliable protection is required.

A brass finish complements traditional door furniture and period-style properties while providing a warm, decorative appearance.

Yes, they are suitable for many timber door installations, provided the door preparation is compatible with the selected lock size.

A deadlock is ideal when security is the primary requirement and a latch function is not needed.