Espagnolette Bolt: Traditional Window Hardware for Secure Multi-Point Locking
Wiki Article
An espagnolette
bolt is a traditional locking mechanism commonly used on casement
windows and French doors. Designed for multi-point locking, it secures the
frame at both the top and bottom using a single central handle.
This system enhances structural
stability, improves weather sealing, and increases resistance to forced entry.
Overview
An espagnolette bolt works through a
vertical rod system connected to a central gearbox or handle. When the handle
rotates:
- Rods extend upward and downward
- Locking points engage at the top and bottom of the
frame
- The sash is secured at multiple points simultaneously
This creates a stronger and more
evenly distributed locking force compared to single-latch systems.
Key Components
- Central Gearbox / Handle
- Vertical Locking Rods
- Strike Plates (Keeps)
- Locking Points
Key
Features
- Multi-point locking system
- Available in concealed and surface-mounted styles
- Compatible with timber, uPVC, and aluminium frames
- Smooth handle-driven operation
- Optional key-locking mechanism
Common Applications
- Casement windows
- French doors
- Balcony doors
- Heritage-style window systems
- Double-opening windows
Comparison
Guide: Espagnolette Bolt vs Multi-Point Door Lock
Although both systems provide
multi-point locking, they serve different purposes and operate differently.
|
Feature |
Espagnolette
Bolt |
Multi-Point
Door Lock |
|
Primary Use |
Windows & French doors |
Main entrance & external doors |
|
Locking Mechanism |
Vertical rods (top & bottom) |
Multiple locking hooks, rollers,
or bolts along door edge |
|
Operation |
Single rotating handle |
Handle + key cylinder |
|
Security Level |
Medium to High |
High to Very High |
|
Installation |
Slim, internal frame fit |
Full-length locking strip |
|
Best For |
Casement windows, patio doors |
Front doors, composite doors,
security doors |
When
to Choose Each
Choose Espagnolette Bolt If:
- Installing or upgrading casement windows
- Working with French doors
- You want smooth handle-based operation
- You need concealed hardware within window profiles
Choose Multi-Point Door Lock If:
- Securing a main entrance door
- Requiring maximum intrusion resistance
- Installing composite or uPVC front doors
- Complying with higher security standards
Buy
Espagnolette Bolts – Trade & Bulk Supply for Window Manufacturers
If you are a hardware supplier,
fabricator, or window manufacturer, espagnolette
bolts are essential components in modern and traditional window systems.
Why
Stock Espagnolette Bolts?
- High demand in residential construction
- Required for uPVC, aluminium, and timber windows
- Available in multiple backsets and rod lengths
- Offered in locking and non-locking variants
- Compatible with various handle designs
Available
Variants for Trade Supply
- Inline and offset gearboxes
- 7mm and 8mm spindle sizes
- 20mm and 22mm backsets
- Adjustable rod lengths
- Stainless steel and corrosion-resistant finishes
Ideal
Buyers
- Window fabricators
- Door and glazing installers
- Architectural ironmongers
- Construction contractors
- Hardware distributors
Commercial
Benefits
- Strong resale demand
- Essential component in window fabrication
- Suitable for new builds and refurbishment markets
- Compatible with industry-standard profiles
FAQs
Q1: Are espagnolette bolts secure
enough for external windows?
Yes, they provide strong multi-point locking and are widely used in external
casement systems.
Q2: Can I replace an old espag bolt?
Yes, but rod length, backset, and spindle size must match.
Q3: What is the standard backset
size?
Common sizes are 20mm and 22mm, but variations exist.
Q4: Are they compatible with modern
uPVC windows?
Yes, concealed espagnolette systems are standard in uPVC window manufacturing.
Q5: Do they require maintenance?
Occasional lubrication and alignment checks are recommended.
Conclusion
The espagnolette
bolt remains a vital component in modern window security systems. Offering
smooth operation and multi-point locking, it is ideal for casement windows and
French doors.
When compared to multi-point door
locks, espagnolette systems serve a specialised yet essential role in window
and light door applications.
For hardware suppliers and trade professionals,
stocking high-quality espagnolette bolts ensures compatibility with today’s
construction standards while meeting ongoing market demand.