
A robust key-controlled mechanical bolt interlock designed for the safe control of valves, isolators and electrical switchgear.
Key Features
- Key-operated mechanical bolt interlock
- Multiple bolt lengths with a 15.88 mm bolt diameter
- Compatible with FS and Q key types
- Brass or stainless-steel construction
- Suitable for standard, harsh and corrosive environments
- Bolt shear strength: 30 kN stainless steel / 19 kN brass
How It Works
The trapped-key sequence ensures isolation before access. The operating key is released only after the bolt reaches its safe position, helping prevent unsafe operation or restart.
Example configuration: K-FSB-6.4-4
Price: Contact for Pricing

