Schlage Commercial K110-020 626 Armor Front Screws (2 Each K510-210), L Series, 8-32 x 1/4" MS PFH

They're the mounting screws that hold the armor front onto a Schlage L Series mortise lock. Each pack is two of the K510-210 screw, 8-32 x 1/4 inch machine screw, phillips flat head, in stainless steel. If you pulled a lock apart and lost the front screws, or the heads are chewed up, this is the replacement pack rather than a whole new front.

No. The K110-020 screw pack is specified for the L Series mortise lock only, and the armor front is a mortise-lock part. ND Series cylindrical locks and B Series deadbolts don't use an armor front, so these aren't the screws for them. Order the fastener pack listed for that series instead.

Seven finishes are stocked: 605 bright brass, 612 satin bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 622 matte black, 625 bright chrome, and 626 satin chrome. Match the screw finish to the armor front, not to the lever trim, since the screw heads sit in the door edge alongside the front.

Two screws per pack, both the K510-210. An armor front takes two, one top and one bottom, so one pack does one lock. If you're refreshing fronts across a floor of doors, count one pack per opening.

The screw itself is stainless steel with the finish applied over it, so the base metal holds up better in a wet or coastal exterior opening than a plain plated steel fastener. For an exterior door, 626 satin chrome and 619 satin nickel are the finishes that hide weathering best; 613 oil-rubbed bronze is a living finish and will change appearance outdoors.

Yes, it's a commercial part, sold as service hardware for the L Series mortise lock line used on offices, schools, and multi-family corridors. Same fastener whether the opening is high traffic or a back office, the L Series takes one armor front screw spec.