Delaney Contemporary - Grade 3 One-Sided Half Bore Square Deadbolt

A one-sided deadbolt throws the bolt from the inside only. There is no keyed cylinder and no thumbturn on the exterior face, so nobody can operate it from outside the door at all. That makes it the right choice for a door you secure behind you and never enter through: a service door, a storeroom, a garage-to-exterior door, a patio or French door already covered by another lock. It is the wrong choice for a door anyone needs to unlock from outside. For that, order a single cylinder deadbolt or a keyed handleset such as the Callan Visconti or Callan Briona single cylinder handlesets.

Yes, if that door carries the usual residential deadbolt prep. The Delaney Contemporary one-sided deadbolt uses a 2-1/8 inch cross bore and a 1 inch edge bore, and the backset adjusts between 2-3/8 and 2-3/4 inches, which are the two standard residential backsets. Door thickness range is 1-3/8 to 1-3/4 inches. Measure the cross bore on the existing door and the distance from the door edge to the center of that hole before ordering.

Both. The deadbolt covers a 1-3/8 to 1-3/4 inch door thickness range, so it handles the thinner older interior doors and the standard 1-3/4 inch exterior slab without a spacer kit or a different part number.

The Delaney Contemporary square deadbolt is a one-sided function, so it is operated from one side of the door only. When the opening needs key operation from the exterior, a single cylinder handleset covers it: the Callan Visconti Single Cylinder Handleset with Interior Trim and the Callan Briona Single Cylinder Handleset with Interior Trim are both Grade 3, the same grade as the Delaney deadbolt, so the durability class carries over while the exterior key function is added.

No. The Schlage Residential J10 Builders Basics knob and the Schlage Residential F10 Accent lever are both passage function, which means they latch the door but do not lock at all. The Delaney Contemporary square deadbolt is a deadbolt with a one-sided lock function. The two are complementary rather than interchangeable: a passage knob or lever holds the door closed and the deadbolt secures it. Both Schlage passage sets fit doors 1-3/8 inch to 1-3/4 inch thick, the same door thickness range the Delaney deadbolt covers, so the pair mounts on the same door.

Grade 3 is the residential tier, and Delaney lists this deadbolt as residential. It suits single family homes, apartments, and light-traffic multi-family doors. For a commercial entrance, a high-turnover office suite, or anything a property manager expects to cycle hundreds of times a day, step up to a commercial-grade deadbolt instead. Among residential alternatives, the Schlage Residential F Series and Bravura handlesets in this catalog are listed as Grade 2.

It comes with both. The latch faceplate is round corner or square corner, so you match whatever mortise is already routed into the door edge. A drill-and-chisel job on a new door with a square routed pocket takes the square plate; a door bored with a hole saw and a standard latch template takes the round. No separate order line for it.

Projection is 1-3/16 inches, and the escutcheon measures 2-9/16 inches in height and 2-9/16 inches in width. That squared 2-9/16 inch footprint matters on a narrow stile or on a door where a storm door, sidelite trim, or a jamb return sits close to the lock. Check the clear space between the bore center and any obstruction before ordering.

All necessary mounting hardware ships in the box. Construction is all metal. What you supply is the door prep itself if the door is not already bored, and a key-operated lockset or handleset if the opening also needs to be entered from outside, since the one-sided deadbolt gives no exterior operation.

No handing to specify. A bored deadbolt throws straight into the jamb, so the same part works on a left or right hand door, inswing or outswing. The one decision that does change with the opening is backset: the latch adjusts to 2-3/8 or 2-3/4 inches, set it to match the bore already in the door.

The Delaney Contemporary square deadbolt uses an adjustable 2-3/8 inch to 2-3/4 inch backset and ships with a latch faceplate in round corner or square corner. The Schlage Residential J10 Builders Basics knob uses the same 2-3/8 inch or 2-3/4 inch adjustable backset with round corners, so the lower bore and the deadbolt bore take the same backset setting on a standard prepped door. The Schlage Residential F10 Accent lever also uses a dual backset latch, which is the lever equivalent if the job calls for lever trim rather than a knob.

The Delaney Contemporary square deadbolt is Grade 3 and is classed for residential use. The Bravura handlesets, including the 913-Savannah with 615 interior plate and 906-Macon knob, the 915-Jacksonville, the 971-Austin, and the 973-Montgomery with 672 interior plate and 939-Charlotte lever, are Grade 2. For a property manager standardizing an entry, the Bravura sets carry the higher ANSI/BHMA grade number of the two, while the Delaney deadbolt is the Grade 3 device that matches the Contemporary Collection trim.

The Delaney Contemporary square deadbolt is an all-metal mechanical device with no electronics. Where the opening has to be controlled by credential, the Paxton PaxLock Pro Galaxy lever latch lock is the access control alternative: it is battery powered with a dual frequency reader at 13.56 MHz and 2.4 GHz, supports Bluetooth and AES128, is UL, FCC and ISED marked, and is built for a 1-3/4 inch door thickness. Note that it is a lever latch lock rather than a deadbolt, so it changes the device type at the opening, and its 1-3/4 inch door thickness is a single value against the Delaney deadbolt's 1-3/8 inch to 1-3/4 inch range.

Three finishes: US15 satin nickel, US26 polished chrome, and US19 black. For a property manager standardizing a building, satin nickel is the safest match to existing brushed hardware, US19 black pairs with contemporary matte black trim, and US26 gives a bright mirror chrome.

It coordinates with the Delaney Contemporary Collection, so the escutcheon styling lines up with Contemporary handlesets and levers in the same finish. If you are pairing across brands instead, the finish name is what to match on, not the collection: order the deadbolt in US15, US26, or US19 to sit alongside whatever trim is already on the door.

No. The Emtek Select Brass Conical Stem Dark Walnut Knob is a passage, hall and closet function knob, so it operates a latch and provides no locking. The Delaney Contemporary square deadbolt is a one-sided deadbolt that throws a bolt with a 1-3/16 inch projection into the frame. If the goal is decorative knob trim on a door that also needs securing, the Emtek knob and the Delaney deadbolt occupy different bores and are ordered together rather than one in place of the other.

The Delaney Contemporary square deadbolt is a standalone deadbolt that installs in its own 2-1/8 inch cross bore with a 1 inch edge bore, so it is ordered alongside separate door trim. A handleset combines the exterior grip, interior trim and lock in one unit: the Bravura 913-Savannah, 915-Jacksonville and 971-Austin all come with the 615 interior plate and 906-Macon interior knob, the Bravura 973-Montgomery comes with the 672 interior plate and 939-Charlotte interior lever, and the Callan Visconti and Callan Briona are single cylinder handlesets with interior trim. All four Bravura sets are Grade 2 and both Callan sets are Grade 3.