Schlage Commercial 10-073 L Series Deadbolt, Flat Square Corner Strike, 4-7/8" x 1-1/4"

The 10-073 has a 4-7/8 x 1-1/4 inch face, which is the standard full-size mortise strike footprint, so it lands in a frame cut for a full-size mortise strike without reworking the opening. Two things still have to match: the corner profile and the pocket depth. This one is square corner, and because it is a box strike the cutout behind the face has to be clear enough to take the box.

No. The 10-073 is a flat, square corner strike. Set it into a frame cut with radiused corners and you are left with a gap at all four corners and nothing clean bearing on the frame. Radius corner preps, which are common on hollow metal frames, need a radius corner strike instead, and the two do not swap without filing the frame or the strike. Pull the old strike and look at the cutout before you order.

That is exactly what it is. The 10-073 is the deadbolt strike for the Schlage L Series mortise lock, flat with square corners and a 4-7/8 x 1-1/4 inch face. It is catalogued as a replacement part, so you can buy the strike on its own when the existing one is bent, painted over, or the wrong finish, instead of pulling and replacing the lock body.

It is a box strike, so the box is part of the assembly rather than a separate order. That changes the prep more than the strike does. In hollow metal, the pocket behind the cutout has to be open enough to accept the box. In a wood jamb you have to route a pocket for the box, not just bore a bolt hole. The strike itself is indifferent to what the frame is made of; the prep is not.

Handing does not come into it. The 10-073 is a flat strike with no extended lip, and a lip is the only thing that would run left or right, so the same part serves either hand of door. What does have to be right is the corner profile, square rather than radius, and the finish you are matching.

Twelve, and they carry the standard BHMA finish numbers, so match the number specified on your existing trim rather than the name: 605 bright brass, 606 satin brass, 609 antique brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, 629 bright stainless steel, 630 satin stainless steel, and 643E aged bronze. In commercial buildings 626 and 630 are the two you will run into most, and both are stocked here if you are standardizing a fleet of openings.

It will not. The 10-073 is a commercial part built around the L Series mortise lock, and a residential bored deadbolt uses a much smaller strike plate with a different bolt opening and screw spacing. If the door in front of you takes a tubular deadbolt through a bored hole, this is the wrong strike; you want a strike sized for that bored deadbolt instead.