CML 3-Pack Door Knob Keyed Alike Entry Lock Sets in Matte Black. CML Keyed entry door knobs are built with top quality materials and components such as the stainless-steel knobs, brass lock cylinders, and an all-metal latch assembly. A Solid Stainless Steel door knob can withstand bumps, scrapes, and the abuse of harsh environments or high traffic and industrial areas, but the matte black finish also looks stylish with any modern decor. Keyed Alike entry door knob sets have a keyed lock on the outside that can be locked and unlocked from the outside both with the same key. On the inside, they can be locked and unlocked by a convenient thumb turn knob. 5 pin solid brass anti-bump lock cylinders provide a higher level of security. 6 plated keys are included. Every CML door knob has an ANSI Grade 3 certification, which is a certified test to ensure the lock set functions flawlessly and shows no wear for more than 200,000 cycles. A CML door knob offers everything you could want in door hardware providing durability style, smooth operation, strength and security.