What is a flush bolt used for on double doors?

Flush bolts secure the inactive (slave) door leaf on double doors, helping keep the door set aligned so the active leaf can latch and lock correctly.

Where should flush bolts be fitted on French doors?

Flush bolts are typically fitted to the edge of the inactive door leaf, commonly at the top and/or bottom depending on door height and the level of security needed.

Are polished chrome flush bolts suitable for internal doors?

Yes. Polished chrome is a popular finish for internal doors because it looks clean and modern and is easy to maintain in most home and light commercial environments.

Do I need a dust socket with a flush bolt?

If the flush bolt shoots into the floor, a dust socket is recommended to create a cleaner finish and help keep the receiving hole aligned and clear over time.

What size flush bolt do I need?

Common flush bolt lengths include 100mm, 150mm and 200mm. The best size depends on the door height, required bolt throw, and how the door set will be used.

Polished Chrome Flush Bolts

Sleek Recessed Flush Bolts for Double Doors & French Doors

Upgrade the finish and security of your doors with our range of polished chrome flush bolts. Designed to sit recessed (flush) into the door edge, they deliver a clean, modern look while reliably securing the inactive leaf on double doors, French doors, and other paired door sets.

Why Choose Polished Chrome Flush Bolts?

Neat, concealed appearance – recessed design keeps fittings discreet and professional-looking
Secure door positioning – ideal for holding the slave door firmly in place at the top and/or bottom
Durable polished chrome finish – bright, reflective look that suits contemporary and classic interiors
Suitable for multiple door types – options available for timber, metal, and composite door applications

Polished Chrome Finish: Contemporary & Practical

Polished chrome is a popular choice for interiors thanks to its highly reflective, premium look. It pairs especially well with chrome door handles, hinges, and latches to create a consistent finish across the door set. For most internal environments (homes, offices, apartments, and light commercial use), chrome is a dependable, easy-to-clean option.

Flush Bolt Types & Common Sizes

Choose a style that matches how you want the bolt to operate and the level of access you need:

Lever action flush bolts – quick to operate and commonly used on double doors
Thumb-operated flush bolts – simple, controlled operation for frequent use
Manual slide flush bolts – straightforward bolt action for secure positioning

You’ll often see common lengths such as 4" (100mm), 6" (150mm), and 8" (200mm), with longer options available for taller doors or where extra throw is helpful. Flush bolts can typically be fitted top, bottom, or both, depending on the door height and security requirement.

Where Polished Chrome Flush Bolts Are Used

Flush bolts are most commonly used to secure the second (inactive) door so the primary door can latch and lock correctly. Typical uses include:

Flush bolts for double doors in homes, offices, and internal partitions
Flush bolts for French doors in dining rooms, conservatories, and lounges
Sliding door flush bolts where a discreet recessed bolt is preferred
Window flush bolts for certain sash/casement applications (where suitable hardware is specified)

Recommended Accessories

If you’re bolting downwards into the floor, a dust socket helps create a cleaner finish and makes alignment easier over time—especially useful on double doors.

Need Help Choosing the Right Flush Bolt?

If you’re unsure which flush bolt suits your door thickness, material, or intended use, our team can help. Contact us for advice on selecting the best polished chrome flush bolt for your door setup.