Pro-Lok - Strike Plate – High Security Box Strike

The plate measures 4-7/8 x 1-1/4 inches, so the jamb face has to be routed to that footprint. It is a box strike, meaning the bolt pocket is fully enclosed rather than open at the back, so you also need depth behind the plate for the box itself, not just a surface mortise.

The ESP-150 is a jamb-side strike and is not tied to a lock brand. What it has to match is your bolt: the enclosed box has to accept the throw and the cross section of the deadbolt you already have, and the 4-7/8 x 1-1/4 inch plate has to land where your existing strike sits relative to the bolt centerline. Measure your bolt against the plate opening before you rout the jamb, because a box strike is not a part you can shift after the cutout is made.

A standard strike is a flat plate with an open pocket; the bolt throws into the jamb cavity behind it. On the ESP-150 the pocket is a closed steel box that encloses the bolt, so there is no exposed gap to pry or shim at, and the stainless construction plus 2 inch screws puts the resistance into the framing. If you are only replacing a worn or mismatched cosmetic plate, a flat strike does that job with far less jamb prep. If the concern is tampering or a kick-in, the box strike is the one to fit.

It is rated by Pro-Lok for residential, commercial or industrial use, so the same part standardizes across a mixed portfolio. For a property manager running a fleet of units, that matters more than it sounds: one strike, one 4-7/8 x 1-1/4 inch jamb prep, and two finishes to pick between means your maintenance crew is not carrying different reinforcement kits for the front office and the apartment doors.

No, 2 inch screws are in the box. That is the length you want anyway, since the reinforcement only works if the fasteners pass through the jamb and bite the framing behind it. Short factory screws that stop in the jamb are the usual failure point on a kicked door.

Brass and chrome, and that is the full choice. Chrome is the one that reads closest to the satin nickel and stainless trim on most commercial openings; brass matches older residential lock sets. On a jamb the strike sits against the stop, so match it to the deadbolt trim rather than the door hardware if the two differ.

The strike body is stainless steel, which is what you want on an entry jamb where the edge of the opening sees weather every time the door swings. Brass and chrome are the two finish options over it.