Master Lock 1525 Fixed Combination Padlock
Master Lock 1525 Combination Padlock
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Features
Master Lock 1525 Fixed-Combination Locker Padlock
The Master Lock 1525 is a dial-operated padlock for managed indoor lockers in schools, colleges, gyms, leisure centres and workplaces. Users open the lock with its factory-assigned three-number combination, without carrying an individual key.
The 48 mm body, hardened steel shackle and BlockGuard anti-shim protection provide practical security for compatible locker hasps. The padlock also supports supervisory key control for authorised administrators.
Key Features
- Fixed three-number combination: factory-assigned and not user-resettable.
- Managed access: compatible supervisory key control supports authorised staff access. Confirm control-key supply and compatibility separately.
- BlockGuard anti-shim design: helps resist attempts to bypass the shackle.
- Hardened steel shackle: 7 mm diameter for compatible locker hasps.
- Automatic dial scrambling: the dial scrambles when the shackle is closed, as stated in the supplied product information.
- Indoor locker use: suitable for dry, managed environments rather than prolonged outdoor exposure.
Choosing and Managing the 1525
Check the locker hasp before ordering: the opening must accommodate a 7 mm diameter shackle, with 19 mm vertical clearance and 21 mm horizontal clearance. Also allow space for the 48 mm body and access to the front dial.
For multi-locker installations, record the assigned combination against each lock and locker number, store the record securely and restrict access to authorised staff. Agree supervisory-key arrangements before placing a bulk order. The control key is not described as included with each padlock.
A fixed combination is useful for centrally managed lockers. If individual users need to choose or change their own code, consider an appropriate resettable alternative instead.
Specification
Please see our technical documentation for this product below Master Lock 1525 combination padlock specification
Master Lock 1525 Technical Specifications
Use these dimensions to confirm locker compatibility before ordering. Consult the manufacturer document linked above where a close-tolerance fit is required.
| Model | 1525 |
|---|---|
| Type | Fixed three-number dial combination padlock |
| Combination range | Up to 1,500 factory-assigned sequences (as specified in the supplied page) |
| Body width | 48 mm |
| Body construction | Reinforced stainless steel, as described in the supplied page |
| Shackle material | Hardened steel |
| Shackle diameter | 7 mm |
| Vertical shackle clearance | 19 mm |
| Horizontal shackle clearance | 21 mm |
| Protection | BlockGuard anti-shim mechanism |
| Control access | Compatible supervisory key system; control-key arrangements to be confirmed |
| Intended environment | Managed indoor lockers |
Fitting check: measure the locker hasp hole and available clearance. The 48 mm body must hang freely without obstructing the dial or door.
Care and Combination Administration
Keep the dial and shackle free of dirt, inspect the locking point for wear and do not force the mechanism. Keep a secure record of assigned combinations and make supervisory-key access available only to authorised personnel.
For specifications, see the Master Lock combination padlock specification sheet (PDF). Confirm the 1525 variant details against this document.
Master Lock 1525 FAQs
Can a user reset the Master Lock 1525 combination?
No. The three-number combination is factory assigned and is not designed to be changed by the individual user.
Does the Master Lock 1525 need a key?
The normal user opens the padlock using the assigned dial combination. A compatible supervisory key system allows authorised staff access; confirm key compatibility and supply separately.
Will the 1525 fit my locker hasp?
The fitting must accept a 7 mm shackle and provide space within its 19 mm vertical and 21 mm horizontal clearance. Allow room for the 48 mm padlock body and dial.
Is the Master Lock 1525 suitable for outdoor use?
This model is intended primarily for indoor locker use. Choose a padlock specifically suited to wet or exposed conditions for outdoor installations.
Delivery
Delivery Information
The approximate lead time is 5 Working Days.
Standard delivery is available to mainland UK addresses, Monday to Friday between 8:00 am and 5:00 pm.
Deliveries are kerbside only. Products may be delivered by a third-party pallet or specialist carrier using a suitable commercial vehicle.
The customer is responsible for providing suitable personnel and equipment to unload the delivery safely.
Please tell us before ordering about restricted access, specific delivery dates or times, FORS requirements or other special delivery arrangements. These may be available at an additional cost.