Hardware and parts
Shopfront locks
Shopfront locks are the locking devices fitted to commercial doors, including narrow-stile hookbolt and deadlock cases, euro cylinders, floor locks and patch locks. Mechanical locks are covered by BS EN 12209, cylinders by BS EN 1303, and BS 3621 applies to domestic-style thief-resistant locks.
Where does it work well?
Aluminium, steel, timber and glass shop doors, with the choice driven by stile width, door type, how the door is used and the level of security your insurer asks for.
Pros
- Hookbolts resist prising apart
- Cylinders can change without replacing the case
- Can be keyed alike across several doors
Cons
- Narrow aluminium stiles limit the options
- Basic cylinders can be snapped
- Glass doors need special locks
How long does it last?
Typically many years on a well-aligned door, with cylinders and keeps showing wear first.
What should you check when buying?
Measure the backset and cylinder length before ordering, and check what your insurer requires. Ask for a TS 007 three-star cylinder or equivalent protection against snapping. On escape doors, make sure the lock cannot stop people leaving while the building is occupied.
Common questions
What is a hookbolt lock?
A hookbolt lock has a bolt that swings out and hooks into the keep, rather than sliding straight across. It resists the door being levered away from the frame, which is why it is common on aluminium shop doors.
Are euro cylinders secure?
They vary. Basic cylinders can be snapped, but cylinders rated three-star under TS 007 have been tested against snapping, picking and drilling. A protective escutcheon helps too. Ask for the rating, not just the term anti-snap.