Fast Key Services Ltd offers a full range of master key suiting systems and are fully qualified service agents for both ISEO and Mul-T-Lock locking solutions.

Price and Service

FKS has 25 years of experience in same day dispatch of office furniture keys. Keys are cut on the premises and we will supply your replacement master suited security keys with the same fast turn-around. No more waiting two weeks plus for replacement security keys as Fastkeys offer same day dispatch at very competitive prices.

We can create master suited systems tailored to your individual needs including a comprehensive range of locks including Euro and Oval Cylinders along with Padlocks, Shutter Locks and Threaded and Rim Cylinders.

Locking systems can accommodate keyed to differ cylinders, keyed alike systems and can be built to include several Master Keying possibilities including Grand Master and Great Grand Master suited systems.

Grand Master and Great Grand Master key systems allow for doors to be grouped and also sub-grouped. These systems are useful for offices where each room has its own key, for example a cleaner may have one key to open all the rooms say on a designated floor, while the facilities manager keeps a master key to open all of the doors in the building.

Master suited systems range from cost effective 5 pin security for small master suites to 11 pin restricted section keys for patented key protection offering enhanced security and superb Master Suiting possibilities. At the top end of the spectrum, FKS also supply the ISEO CSF Mechatronic System with patented lifetime copyright. The Mechatronic system is composed of mechanical and electronic cylinders giving endless combinations and flexibility.

ISEO master suite locking solutions
Mul-T-Lock master suite locking solutions

Welcome to Fast Key Services Master Key Suited Systems page

ISEO master key systems cylinders come in a choice of brass or nickel plated finish and as doubles, single/ half cylinders, thumb-turns and oval cylinders. The single/ half cylinders go from 25mm to 95mm in size . The doubles and thumb-turn cylinders range from 21mm to 80mm lengths.

Tested to a 200,000 cycle, the ISEO cylinders meet the BS EN1303 requirement. The ISEO range of cylinders starts from the standard five pin (F5) level of security which has a brass body and a Steel Cam which is built to DIN standard 18254.

For increased protection of your property, the R6 range which has an extra pin (six in total) making it more difficult to open than the five pin (F5) cylinder. This cylinder has a body made from hardened steel and stainless steel pins for an even greater level of accuracy.

More complex patented key and lock security is provided by the ISEO R11 and ISEO R50 cylinders which have three separate tiers of pins that enable more than one million key differs. 200 sub master key suites can be obtained under a single master key, with extra or replacement keys available when given the correct authority level. ISEO R11 and R50 cylinders have increased strength and durability as they are supplied with patented nickel silver 3mm flat reversible keys. Master Suites can be designed with various levels of master keys and sub masters including grand master keys (GMK) and great grand master keys (GGMK).

Fast Key Services Ltd can also cut ISEO keys to code on their modern electronic machines. Keys are normally dispatched the same day by first class post and guaranteed next day delivery is available upon request. Fastkeys can also cut security keys for Mul-T-Lock including Garrison locks, Mul-T-Lock Classic, Mul-T-Lock MT5 and Mul-T-Lock Interactive Euro and Oval profile cylinders. Security key cutting and master key cutting is provided for a wide range of master key systems and master key suites. Feel free to contact the trade counter for expert advice and to see if we are able to replacement and spare security keys for your existing master suite systems.

The Fast Key Services Ltd. locksmiths can be contacted by phone on 01268 562 592 in their office hours from Monday-Friday 9:00am to 5:00pm. Alternatively you can email anytime. For more information about Fast Key Services Ltd products and services, please visit:

Contact UsBy phone, fax & email.

Fast Key Services Ltd
Unit 3 Pilot Close, Fulmar Way
SS11 8YW
United Kingdom

Sales Office: (+44) 01268 562 562
Trade Counter: (+44) 01268 562592
Accounts: (+44) 01268 562572
Fax: (+44) 01268 570 121

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