With over 120 individual components, around 460 variants can be configured—delivering maximum design flexibility and technical precision:
Door handles with round or rectangular roses, short and long backplates, and narrow-stile backplates.
Window handles and plug-in handles in various designs
Commercial hardware sets (FSB ASL® & AGL®) for specialized requirements
Modular Configuration using the example of an FSB ASL® door handle set.
Select Female Handle (2 pieces) — based on your design requirements
Add Adapter and Cover Rosette (2 pieces) — standardized for all female handles
Add Key Rosette (1 pair) — compatible with all individual components
Mounting Hardware (1 set) — for installing the components
Ready-to-Install Set
Easy installation thanks to separate female handle and cover rose
The proprietary adapter solution replaces numerous custom variants and reduces complexity. Instead of countless individual models, a single modular component accommodates a wide range of door and window types—functionally refined, easy to install, and built to last.
One Adapter for Virtually All Applications
Quick to install, easy to retrofit
Significantly reduced storage requirements
Compatible with all door and window systems
Highly compatible with existing components
The adapter rose is pre-installed on the door or window without the door handle or cover rose.
No need to screw past the handle neck which saves time during installation
Separate female handle and adapter results in simpler installation and less risk of damage, as they can be mounted at the end of the construction phase
Even force distribution protects lock and hardware—for maximum durability
The result: Less effort, lower costs, and a smart system that’s quick and reliable to deploy.
We’re here to help—with product guidance and project support.
Head of Project and Order Management Center
int.sales@fsb.de +49 5272 608200Fewer Inventory Items: Easier to Plan and Budget
Faster Availability: Respond Flexibly to Inquiries
Easy to Retrofit: Ideal for Ongoing Projects
Cost-Efficient: Thanks to Reduced Storage and Installation Expenses
The FSB Kit System combines functional excellence with design freedom. It adapts, anticipates—and delivers long-term reliability. For those looking to build efficiently, plan sustainably, and implement tailored solutions, this is the right approach: modular, precise, and intelligently engineered.
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