Kaba Group 15995SC-04 Satin Brass US4 door lock

Solid Brass Replacement Cylinder

The Ilco 15995SC-04 is a solid brass Key-In-Deadbolt cylinder finished in Satin Brass US4. It fits Schlage, Arrow and compatible key-in-deadbolt locks and uses the Schlage SC1 keyway. The cylinder is keyed different and ships with six tailpieces to suit single and double deadbolt configurations. Homeowners and locksmiths can install it as a direct replacement without modifying existing hardware.

Sustained Mechanical Operation

The five-pin tumbler mechanism is machined from solid brass bar stock to OEM specifications, providing consistent engagement over repeated cycles. Solid brass construction resists the wear that causes binding or key sticking in lower-grade cylinders. The six included tailpieces (three rigid in different lengths, one lazy for single deadbolt and two lazy for double deadbolt) maintain proper alignment through daily locking and unlocking. This design supports reliable operation in both interior and exterior doors.

Environmental Durability

The Satin Brass US4 finish protects the solid brass body from corrosion in indoor and outdoor environments. No electronic components are present, so power draw and fan noise are not applicable. The mechanical design generates only the sound of the key turning and the bolt throwing. Brass material stability keeps tolerances consistent across temperature and humidity changes, avoiding the expansion or contraction that can affect lock feel.