Emtek 4320 Knoxville Double Cylinder Entrance Handleset - Brass Tubular

The Knoxville handleset uses a standard 2-1/8 inch cross bore with 5-1/2 inch center-to-center spacing between the deadbolt and the knob or lever bore. That is the common residential handleset prep, so if your current handleset shares the 5-1/2 inch CTC layout you're drilling nothing new. Door thickness range is 1-3/8 to 2 inches, which covers a standard 1-3/4 inch exterior door and thicker custom slabs.

Double cylinder means the deadbolt is keyed on both sides, so there is no thumbturn inside. You need the key to unlock from indoors as well as out. That is what you want on a door with glass beside or in it, where someone could reach through and turn a thumbturn. It is also why many jurisdictions restrict it on a primary egress door, so check the local code for the opening before you commit. If you want a thumbturn inside, order a single cylinder version instead.

Both are offered, and the answer is set by your door, not your preference. Measure from the door edge to the center of the bore hole: 2-3/8 inches on most residential doors, 2-3/4 inches on many wider-stile or builder doors. The standard latch shipped with the Knoxville is 2-3/8 inch, so specify 2-3/4 inch on the order if that is what your door is bored for.

Handing is required, left or right, on every order. It matters most when you pick a lever for the inside trim, since a lever has to point toward the latch side. If you choose a knob for the interior the knob itself is not handed, but the order still gets a hand specified. Stand outside the door: if the hinges are on your left it is left hand, hinges on the right is right hand.

The Knoxville ships with a Schlage C keyway as standard, so it drops into an existing Schlage C system. A Weiser WR5 keyway version is also available at no upcharge for the cylinder substitution and can be keyed into an existing Weiser system. Keyed alike and keyed different are both order options, and you can supply an existing key code to have it cut to match what you already carry.

The Emtek 4320 Knoxville is a brass tubular entrance handleset built for 1-3/8 inch to 2 inch doors with a 5-1/2 inch center-to-center handle prep. The nearest solid brass peers are the Deltana Hanover 803871B, the Deltana St. Ann 815871 and the Deltana Kingston 825871, all solid brass handlesets in an entry function. The Deltana Montego 810871 covers the same 1-3/8 inch to 2 inch door thickness range as the 4320. The difference to weigh is the cylinder count: the 4320 is a double cylinder set, keyed on both the outside and the inside.

The Emtek 4320 Knoxville is a double cylinder set, meaning it takes a key on the inside as well as the outside. When code or occupant egress calls for a thumbturn inside instead, single cylinder handlesets in the comparable range include the Schlage Residential F60 Addison with Accent lever, the Weslock 2810 Hillcrest with Hudson knob, the Weslock 1411 Traditionale Colonial with Eleganti knob, the Pamex FS7P31 Lexington, and the Kwikset 687AMD Amador. The Schlage F60 Addison is Grade 2 and fits 1-3/8 inch to 1-3/4 inch doors; the Weslock 2810 Hillcrest fits 1-3/8 inch to 2 inch, matching the 4320 door range.

The Emtek 4320 Knoxville is a tubular lock using a standard 2-1/8 inch cross bore and a 2-3/8 inch or 2-3/4 inch backset. A mortise body needs a pocket routed into the door edge instead, so it is not a drop-in swap. For a mortise entry set on a 1-3/4 inch door, the Baldwin Estates 6542 Tremont is offered in both a double cylinder version, the 6542DBLC, and a single cylinder version, the 6542ENTR, each listed for a 1-3/4 inch door. The 6542DBLC matches the 4320 on cylinder count, both being double cylinder entry sets.

The Emtek 4320 Knoxville is prepped for doors 1-3/8 inch to 2 inch thick, so a heavier door falls outside it. For thicker stock, the Weslock 1411 Traditionale Colonial with Eleganti knob is a single cylinder keyed entry handleset listed for 1-3/4 inch to 2-1/4 inch doors. Among electronic options in the same thickness band, the Yale Real Living Ridgefield handleset sets BYRD226CBARX, BYRD226NRRX and BYRD256 CBARX are listed for 1-3/4 inch to 2-1/4 inch.

Seven: Oil Rubbed Bronze (US10B), Satin Nickel (US15), Pewter (US15A), Polished Chrome (US26), Polished Brass Lifetime (US3), Unlacquered Brass (US3NL), and French Antique (US7). Two of those behave differently over time. Unlacquered brass is left bare and will darken and patina with handling, which is the intent. Polished Brass Lifetime carries a protective coating meant to hold its shine. If you are matching existing hardware on other doors, know which of the two brasses is already on the building.

Yes, and that is the point of the Knoxville. The interior trim is your choice from Emtek's brass knobs and levers, running from plain shapes like the Round Knob and Square Knob through the traditional Rope and Ribbon and Reed patterns, contemporary bar levers, and crystal knobs like Windsor and Bristol. If your interior doors already wear an Emtek knob pattern, pick the same one here and the entry matches the rest of the openings.

Tubular. It goes into a bored door with a 2-1/8 inch cross bore rather than a routed mortise pocket, which makes it the far easier retrofit on an existing residential door. A mortise handleset needs a rectangular pocket cut into the door edge. If your door is already prepped for mortise, look instead at trim built for that prep, such as the Baldwin Estates 6542 Tremont double cylinder entry mortise trim.

Residential. The Knoxville is a brass residential entrance handleset, built for a house or a unit front door rather than a high-traffic commercial opening. For a multi-family or light commercial door where you need a stated grade, the Schlage Residential F60 Addison keyed entry handleset is Grade 2, and the Master Lock HDLB Series single cylinder deadbolt handleset is Grade 2 as well.

Depends on why it does not fit. For a door thicker than 2 inches, the Weslock 1411 Traditionale Colonial handleset covers 1-3/4 to 2-1/4 inches. For a solid brass handleset at a simpler spec, Deltana's Montego 810871 covers the same 1-3/8 to 2 inch thickness range, and the Hanover, St. Ann and Kingston handlesets are Deltana's solid brass entry options. If you want the deadbolt keypad-operated rather than keyed on both sides, the Yale Assure Lock touchscreen deadbolt with Ridgefield handleset is the electronic route.

Keyed alike is an order option, so a front and rear entry can run on one key. Both doors need the same keyway family, Schlage C or Weiser WR5, ordered together. You can also give an existing key code at order time so the new sets match keys already in the building. If each door should carry a separate key, order keyed different.

They are not interchangeable in two ways that matter. The Kwikset 687AMD Amador is sold as exterior trim only, so it does not bring the inside knob or lever with it, while the 4320 Knoxville ships as a complete set with latch and strike plate and takes any Emtek brass knob or lever for the inside. The Amador is also a single cylinder keyed entry against the 4320's double cylinder, and it is listed for a 1-3/4 inch door where the 4320 covers 1-3/8 inch to 2 inch. The 687AMD comes in a SmartKey version and a SC1 keyway SmartKey version, the 687AMD-SMC.

The Emtek 4320 Knoxville is a keyed double cylinder entrance set. Two peers share the handleset shape but not the function: the Weslock 6695 Belmont with Impresa knob and the Weslock 2815 Hillcrest with New Heaven lever are both dummy handlesets, meaning fixed trim with no latch operation, typically used on the inactive leaf of a pair. The Schlage Residential JE285 Barcelona with Seville lever is a non-keyed entry handleset. If the opening needs a key, none of those three will serve.

The Emtek 4320 Knoxville is a mechanical set with no electronics, keyed on both sides in the Schlage C keyway or a Weiser WR5 keyway. For electronic entry on a handleset, the Kwikset 815SCEHFL-CP913CNT San Clemente pairs a Halifax lever interior with a Contemporary SmartCode keypad electronic deadbolt on a 1-3/4 inch door. Yale Real Living offers the Ridgefield handleset with several deadbolt heads: the BYRD226CBARX Assure Lock with Wi-Fi and Bluetooth touchscreen, the BYRD226NRRX standalone touchscreen, and the BYRD256 CBARX key-free Wi-Fi touchscreen with passage handleset trim. The Yale BYRD226 sets are listed for 1-3/4 inch to 2-1/4 inch doors, so confirm your door thickness before switching from the 4320's 1-3/8 inch to 2 inch range.

The Emtek 4320 Knoxville is a residential brass handleset. Where a purchase order calls out a grade, the comparable handlesets that state one are the Master Lock HDLBA0615/4D single cylinder deadbolt handleset at Grade 2, the Schlage Residential F60 Addison with Accent lever at Grade 2, the Schlage Residential JE285 Barcelona with Seville lever at Grade 2, and the Kwikset 687AMD Amador and 687BW Belleview at Grade 3. The Schlage F60 and JE285 fit 1-3/8 inch to 1-3/4 inch doors.

The Baldwin Wesley handleset is offered with an Alcott knob as 180WYHXATK and with a Carnaby knob as 180WYHXCYK, both in an entrance function like the 4320 Knoxville. The distinction to check is cylinder count: the Emtek 4320 Knoxville is a double cylinder set, keyed on both faces of the door, so if the requirement is a key on the inside as well, confirm the Wesley configuration before substituting. Interior trim also works differently on the two - the 4320 takes any Emtek brass knob or lever as a separate selection, while the Wesley is paired with its knob in the part number.

Solid brass is the substrate, not a coating over zinc. That matters on an exterior door in coastal or wet climates, where a plated pot-metal handleset corrodes under the finish. Unlacquered Brass (US3NL) is the bare version if you want it to weather naturally.

Purely mechanical, key operated, with no electronics and no keypad. If you need coded or phone access on the entry door, look at the Kwikset 815SCEHFL San Clemente handleset with a SmartCode keypad electronic deadbolt, or the Yale Assure Lock BYRD226CBARX with Wi-Fi and Bluetooth and a Ridgefield handleset.

Split finish is an order option on the Knoxville, so the exterior handleset can run one finish and the interior knob or lever another. Useful when the outside has to match existing exterior hardware but the inside should match the rest of the interior doors. Specify both finishes when you order.

They solve different openings. The Emtek 4320 Knoxville is a double cylinder entrance handleset, keyed both sides, with a 5-1/2 inch center-to-center prep and a 2-1/8 inch cross bore. The Schlage Residential JI18/19 with Torino lever in satin stainless is an interconnected set combining a passage lock with a keyed deadbolt, Grade 2, for 1-3/8 inch to 1-3/4 inch doors - the lever always retracts the latch freely and the deadbolt does the locking. Choose by whether the opening wants a gripped handle with a keyed exterior or a lever with a separate deadbolt.

The Emtek 4320 Knoxville is configured across several choices - finish, keyway, handing, backset and the inside knob or lever - and it is offered in Satin Nickel US15 among its finishes. The Pamex FS7P31 Lexington is a single cylinder handleset supplied in a satin nickel finish as one part number, in an entry function, for doors 1-3/8 inch to 1-3/4 inch thick. It is a single cylinder set, so the inside is not keyed the way the 4320's double cylinder is.