Carbine Sandown 4000 Tiebolt Storeroom Set – C4 Keyed to Differ – Boxed – Satin Stainless Steel

The Carbine Sandown 4000 Storeroom Set is a heavy-duty commercial knobset designed for secure storage areas, service rooms, and utility spaces. With a C4 Keyed to Differ cylinder and tiebolt construction, this set ensures consistent performance and durability in high-use environments.

The storeroom function keeps the outside knob always locked (key required for entry), while the inside knob remains free for safe exit. Finished in Satin Stainless Steel and supplied boxed, it's a dependable option for secure, code-compliant installations.

Key Features:

• Storeroom function – outside knob always locked, key required to open; inside knob always free

• C4 Keyed to Differ 6-pin PD brass cylinder

• Strong tiebolt mechanism for commercial use

• Fire rated for up to 2 hours

• Tested to 400,000 cycles with no failures

• Adjustable 60–70mm latch included (127mm backset available separately)

• Satin Stainless Steel finish with 75mm rose

• Visible internal fixing

• Compatible with restricted inline and high-security cylinders

• Suits KeyLine LKW9 (Silca LW5) keyway

• Fits door thicknesses from 35mm–45mm (spacers available for thinner doors)

Keys Supplied:

• 2 keys per lock (when keyed to differ)

• 2 keys total per order (when keyed alike)

An ideal choice for storerooms and secure areas that require keyed access at all times from the outside.