Kwikset KWI-85303 Radius Corner Deadbolt Full Lip Strike

Match the corners to the mortise already cut in the jamb. The Kwikset 85303 has radius (rounded) corners, so it drops into a jamb routed by a template or a factory-prepped jamb without chiseling the corners square. If your existing plate has sharp square corners, a radius plate will leave four small gaps at the corners of the cutout. For that prep, a square corner deadbolt strike such as the Emtek 83223 is the right shape.

It is a residential grade part. For apartment unit entry doors and single family rentals that is the normal spec. On a commercial opening, especially a fire rated door with a labeled frame, do not substitute a residential strike; use hardware carried for commercial use, such as the Codelocks ASA strike plate in stainless steel for openings prepped to the ASA cutout.

The Kwikset 85303 is a radius corner full lip deadbolt strike, so it drops into a jamb mortise that was routed with rounded corners. The Emtek 83223 is a standard deadbolt strike plate with square corners, which suits a jamb prepped with a chisel-squared mortise. Match the plate corner to the prep already cut in the jamb and you avoid reworking the pocket.

No. The Codelocks ASA strike plate is an ASA-format strike in a stainless steel finish, which is the larger standard-size strike used with ASA-prepped jambs. The Kwikset 85303 is a radius corner full lip deadbolt strike for residential tubular deadbolt hardware. The two answer different jamb preps, so the ASA plate is not a drop-in for an opening cut for the 85303.

It is built for Kwikset residential tubular deadbolts. Deadbolt strikes are not standardized across brands the way bore sizes are, so the safe check is the jamb cutout you already have: radius corners, full lip, and a bolt hole that lines up with where your bolt actually throws. If your existing plate is a different size or shape, plan on re-prepping the jamb.

No. A full lip strike is a flat plate with the lip running the full height of the plate, so it covers the jamb edge along the whole cutout. A T-strike has a shortened lip and a different outline. A strike box is the metal cup that sits behind the plate inside the jamb pocket; the Kwikset 85303 is the visible plate, so if your jamb pocket has no box behind it you are ordering that separately.

Often, yes. A deadbolt that binds is usually hitting the edge of the strike opening rather than passing cleanly into it, from a settled jamb or a strike that was installed slightly off. Swapping in a fresh Kwikset 85303 lets you reset the plate position on the jamb, and because the lip runs the full height, small vertical adjustments still leave the jamb edge covered. If the bolt is missing the hole by more than about a bolt width, the jamb pocket needs to move, not just the plate.

Both are deadbolt strikes, and the choice comes down to your jamb prep. The Kwikset 85303 has radius corners. The Deltana SP2753 is a steel deadbolt strike measuring 2-3/4 by 1-1/4 inches, so if your existing cutout matches that footprint it is the closer drop in. Check the outline of what is on the jamb now before ordering either.

For residential tubular deadbolts, the Kwikset 85303 radius corner full lip strike and the Emtek 83223 standard deadbolt strike plate cover the two common jamb preps between them, radius corner and square corner. The Deltana SP2753 is a steel deadbolt strike at 2-3/4 inches by 1-1/4 inches. If the buildings were prepped with a router, the radius corner 85303 is the one that repeats across the most doors, and it is stocked in Bright Brass, Satin Chrome, Satin Nickel and Dark Bronze/Black to match what is already hanging.

The 85303 is the strike plate itself. On any exterior deadbolt, the standard short strike screws only bite into the jamb trim, and 3 inch screws driven through into the framing stud behind it are what actually resist a kick. Property managers standardizing unit entry doors should plan on long screws at every deadbolt strike regardless of what ships in the bag.