Flush Bolts

Secure, Discreet Door Locking

Flush bolts are a sleek and effective way to secure double doors, French doors, or internal cupboard doors. Installed flush into the top or bottom edge of a door, they offer hidden locking without disrupting the door’s appearance or operation.

Our range includes flush bolts in a variety of finishes such as brass, satin chrome, polished chrome, black, and stainless steel, making them suitable for both residential and commercial use.

✅ Key Features:

• Neat, concealed locking solution for double or inactive doors

• Available in surface or mortice (flush) styles

• Finishes include brass, chrome, satin, black & stainless steel

• Manual lever or small knob to operate

• Ideal for French doors, wardrobes, and cupboard doors

• Durable metal construction for long-term security

📘 Flush Bolts FAQs

❓ What is a flush bolt used for?

Flush bolts are used to secure the inactive leaf of double doors. They are installed in the edge of the door and lock into the head or floor.

❓ What’s the difference between manual and automatic flush bolts?

• Manual flush bolts are operated by a small lever or knob.

• Automatic flush bolts extend/retract automatically when the active door opens or closes — ideal for fire-rated or commercial settings.

❓ Where should flush bolts be installed?

Typically, they are installed at the top and/or bottom of the inactive door leaf in a pair of double doors, allowing it to stay securely closed.

❓ Can flush bolts be used on internal and external doors?

Yes – they can be used on internal French doors, cupboards, or wardrobes, as well as external double doors, provided they're weather-protected if used outside.

❓ Are flush bolts easy to fit?

Most flush bolts require routing a recess into the door edge. Some surface-mount versions are easier to install with just basic tools.

❓ What sizes are available?

Flush bolts are available in various lengths (e.g., 100mm, 150mm, 300mm). Longer bolts provide greater security, especially for floor-mounted applications.

❓ Do you supply fire-rated flush bolts?

Yes we supply fire-rated flush bolts suitable for FD30/FD60 fire doors, often required in commercial or multi-occupancy buildings.