Mul-T-Lock Security key

Upgrade your door security to Mul-T-Lock MTL600 Security Keys

Mul-T-Lock a worldwide leader in manufacturing for High Security keys, Cylinders Locks and Access Control solutions to consumers and businesses, for over 45 years. Mul-T-Lock products sold through our network of authorised and trained service centers. Mul-T-Lock holds tens of international patents for its innovative products, which provide safety, security and convenience. Mul-T-Lock is an ASSA ABLOY Group Brand.

Mul-T-Lock Security Key

Restricted key by Patent.

Quality, Affordable Security

Mul-T-Lock high security key

Mul-T-Lock’s Restricted keys by a patent, include the most sophisticated security features available. Also used with Mul-T-Lock CLIQ® electro-mechanical technology, a single Mul-T-Lock restricted key can operate all of Mul-T-Lock products for your maximum security and convenience.


Mul-T-Lock keys include special patented floating element to meet the highest security standards and provide enhanced key control capabilities for your business. This reliable, double-locking mechanism offers enhanced resistance to picking, drilling, bumping, 3D printing and other forms of lock manipulation.

Mul-T-Lock 3in1

Mul-T-Lock 3in1 Key System

  • Mul-T-Lock 3in1 key system allowing users to easily change their key combinations through a simple and speedy process.
  • Used the next key in a sequence of three different keys, and each new key mechanically cancel the previous key combination.

Mul-T-Lock Security Keys - 3in1 Advantages

User has full control over their ability to instantly change a cylinder lock combination No need to wait for professional to rekeying in an emergency situation No professional re-keying labour or extra costs involve, change is instantly with the turn of a key A user-friendly and easy to use, the most effective and reliable key system available Mul-T-Lock Authorised Service Centre can easily reset to a new 3in1 keying once all changes are used.

Security keys - Changeable Combination

Cylinder allows for the instant re-keying of mechanical lock cylinders without the need for professional assistance. No removal or disassembly of the cylinder is required. Simply insert and turn a key to permanently change the cylinder to a new combination and that will cancel the previous key.

Do you need a Mul-T-Lock Key Duplication?

Contact us for your Mul-T-Lock authorised locksmiths, supporting Mul-T-Lock security key duplicate.


BITLOCK is the Australian authorised distributor of Mul-T-Lock security products, Serving our clients and their security needs extends beyond a lock and key, it’s about innovating products with the latest technology that give you the security and peace of mind, Designing them in a way that meets their requirements, both aesthetically and functionally.

Mul-T-Lock patented products ensure the security for home and business users.