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Master Lock Large Key Safe with Combination Lock, Black/Silver, Model 5403

Master Lock Large Key Safe with Combination Lock, Black/Silver, Model 5403

The Master Lock Large Key Safe is a robust, wall-mounted security box designed for the secure outdoor storage of keys and small valuables. Constructed from durable aluminium, it provides a permanent, weather-resistant solution for keeping spare keys accessible yet protected from unauthorised access. Its primary function is to eliminate the need for hiding keys under mats or plant pots, offering a more secure method for granting entry to family, friends, or service personnel. The safe operates via a mechanical four-wheel combination lock, allowing users to set and change their own four-digit code for keyless convenience. A protective plastic shutter covers the dials, shielding them from dirt, moisture, and the elements. Internally, it offers ample space to hold a bunch of keys, including larger mortice lock keys, and features a hook for organising them. The unit comes with all necessary hardware for screw-fix installation to an exterior wall, ensuring a solid and tamper-resistant mount. This key safe is ideally suited for residential use, particularly in the rental market, or for homeowners who require regular access for carers, cleaners, or tradespeople. It is also practical for families, providing a secure way for children to let themselves in after school. Its substantial build quality and simple, user-changeable code make it a reliable and practical security accessory for everyday peace of mind.
Brand:Master Lock
Compare prices from £30.95 to £47.18
Save £16.23 (34%)
4.7 / 5(101 reviews)
3520190932297
Black, Silver
2 retailers
Argos Product reviews 4.7 (80) Best price
£30.95 (incl. £3.95 delivery)
In Stock Same day if ordered by 1pm, next day and standard delivery options available. Click & collect
Retailer information

We checked this product from this store on 17 Feb 2026 at 22:09.

Delivery

Cost
£3.95
Time
Same day if ordered by 1pm, next day and standard delivery options available.
Restrictions
Minimum £20 spend for Argos Plus delivery, excludes clothing and supplier-delivered items. Subject to stock, postcode, and availability.

Collection & in-store

Click & collect
Available
Availability
In store & online

Support

Self-service
Order tracking online via website.
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* Price may not include delivery when not stated by the retailer. Prices may have changed since we last checked. We are not liable for any errors or omissions; please confirm price, availability and terms with the retailer before purchasing.

Page last updated: 18 Feb 2026, 20:56