TSR & HMJ Prefixed Master Key System Keys
An account is required to order this key.
You don’t need to own the key system.
Why do I need an account?
We use your account to check your permission to order. All restricted keys require authorisation before cutting. You can order for a property you have permission to access.
Find the numbers on the head of your key or on the cylinder.
Examples: HMJ123, TSR433, ONL111
Examples: A2, B1, C2, MAS, COM, COM A
If your key says TSR123 B1, enter TSR123 as the system number and B1 as the key number.
Checking your system and key numbers…
These look like your system and key numbers:
All restricted keys require authorisation before cutting.
System number:
Key number(s):
Example markings — the position and appearance may differ on your key.
On your key
On your cylinder
Bulk order from spreadsheet
Use the sample columns for this key, then upload CSV or XLSX.
Include a system number on every spreadsheet row. You can mix systems and leave the system and key boxes above blank.
Attach control card photo
Upload one clear photo of the Mul-T-Lock control card before adding this key to basket.
This professional key cutting service is designed specifically for landlords, property managers, and property owners who maintain an existing master key system featuring the 'TSR' & "HMJ" prefix engraved on the key head.
After you place your order it will be sent for approval. Read more about our master key systems here.
To order replacement or additional keys for your system, simply locate the code engraved on your current key head and enter the complete details into the provided text box before adding the item to your basket. For example, if your key is engraved with TSR 123 MAS (representing the Master key for system TSR 123), please enter this exact sequence to ensure your key is cut accurately to code.
Technical Specifications
- System Prefix: TSR or HMJ
- Key Type: Master key system replacement / additional keys
- Ordering Requirement: Engraved key code required (e.g., TSR 123 MAS)
- Cut Type: Cut to code
Key Features
- Convenient Ordering: Simply enter the engraved details from your key head to order
- Ideal for Property Managers: Tailored for landlords and property owners managing TSR master key systems
- Accurate Key Cutting: Keys are professionally cut to code for reliable operation
Keys made easy
Already know your code? Order now. Not sure? We'll decode it from a photo.
Use the quick order form under the price to order this product directly.
Upload a clear photo; we'll find the code so you can order matching keys.
Quick efficient and keys worked without any problems, and it was more economical than some online key cutting services
Peter Bainbridge
This is the third time I have used Lock and Key and each time they have been extremely helpful and always met my requirements. Once you use keyed alike you really appreciate not having to carry muliple keys around with you.
Ged McConville
Easy to navigate website and ordering if you have the information required. Packed well and fast delivery. 1st class service. Highly recommend this company.
Sandra Thorn
Master locksmiths with BSI accreditation
MLA approved locksmiths, BSI certified key systems, and independently audited security standards.