The SC1 Schlage E Keyway-1 1/8″ Mortise Cylinder in US26D, from GMS is crafted from solid brass and fits 5 and 6 pin SC8 and SC9 keys. It is specially engineered to meet Schlage’s specific pinning and spacing standards. Each cylinder comes with 2 keys. This cylinder features a 6-pin core and comes keyed to the 5-pin SC8 key.