Carbine Sandown 4000 Tiebolt Classroom Disability Knob/Lever Set – C4 Keyed to Differ – Boxed – Satin Stainless Steel

The Carbine Sandown 4000 Classroom Set offers a secure and accessible solution for schools and institutional facilities. This combination lockset features a Sandown round knob on the outside and an internal L1 disability-compliant lever from the Ascot PA8000 series, providing ease of use while meeting AS1428 and BCA accessibility standards.

The classroom function allows the outside knob to be locked or unlocked by key, while the inside lever remains always free for safe and easy egress.

Key Features:

• Classroom function – key locks/unlocks outside knob; inside lever always free

• Combination set: Sandown knob (external) + Ascot L1 lever (internal)

• C4 Keyed to Differ 6-pin PD brass cylinder

• Compatible with restricted systems – suits KeyLine LKW9 (Silca LW5) profile

• TES5 cylinder available for Gainsborough keyway (CLAIC-TES5)

• Tiebolt construction for enhanced strength and durability

• Fire rated for up to 2 hours (Tyco tested)

• Adjustable 60–70mm backset

• Concealed internal fixing

• Stainless steel latch bolt

• Suitable for door thicknesses 35mm–45mm

• Supplied boxed in Satin Stainless Steel finish

• L1 lever complies with AS1428 and BCA accessibility requirements

Keys Supplied:
• 2 keys per lock (when keyed to differ)
• 2 keys total per order (when keyed alike)

A robust and compliant locking solution for educational and public buildings requiring secure, accessible, and code-compliant door hardware.