Emtek 8423 Modern Disc Deadbolt - Brass - Single Cylinder
- Schlage® C Keyway
- Single Cylinder Deadbolt Includes extension collar for thin doors
- Standard Door Prep and Installation
- Solid Brass Cylinder, Housing, Collar, Thumbturn, and Rosette
- Hardened Steel Bolt
- Heavy Gauge Steel Understrike
- Brass Trim Strike Shipped with Every Deadbolt
- Handing Not Required
- Standard door thickness of 1-3/4". Specify if thicker. EMPowered™ fits door thickness up to 2-1/4".
- Standard latch is for 2-3/8” backset. Specify 2-3/4”backset if required.
Weiser® (WR5) Keyway
- Specify by adding “W” to the beginning of product code.
- No upcharge for cylinder substitution. Can be keyed into existing Weiser® system
Specifications:
- Backset: 2-3/8" or 2-3/4"
- Cross Bore: 2-1/8"
- Edge Bore: 1"
- Door Thickness: 1-3/8" to 2"
- Keyway: Schlage C
- Material: Brass
Manufacturer Resources
Product Specs
- Subcategory:
- Deadbolts
- Collection:
- Brass
- Product Type:
- Deadbolts
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Deadbolts
- Commercial/Residential:
- Residential
- Lock Function:
- Deadbolt
- Keyed:
- Yes
- Lock Type:
- Tubular
- Series:
- Disc
- Theme:
- Contemporary
- Electronic:
- No
- Keyed Function:
- Single Cylinder
- Handle Type:
- Deadbolt
- Product Attribute:
- Deadbolts
- MAP Policy:
- Yes
- Product Model:
- 8423
- Product Function:
- Cylinder x Thumbturn
- Product Style:
- Contemporary
- Product Material:
- Brass
- Product Category:
- Mechanical Locks
- Product Substrate:
- Brass
- Department:
- Door Hardware
Emtek 8423-US19 – Frequently Asked Questions
1) Will the Emtek 8423 deadbolt drop into my existing deadbolt prep, or do I have to re-bore the door?
Standard prep, so an existing tubular deadbolt bore normally takes it as is. The 8423 wants a 2-1/8 inch cross bore, a 1 inch edge bore, and a backset of either 2-3/8 or 2-3/4 inches, which is what residential entry doors are already bored for. Door thickness is covered from 1-3/8 to 2 inches. Before ordering, measure the cross bore and the distance from the door edge to the center of that bore, because backset is a fixed choice on this latch rather than an adjustable one.
2) Which backset do I order for the Emtek 8423, 2-3/8 or 2-3/4?
Measure from the edge of the door to the center of the bore. 2-3/8 inches is the common residential dimension, 2-3/4 inches shows up on wider stiles and many builder entry doors. The 8423 ships with the 2-3/8 inch latch as standard and the 2-3/4 inch has to be called out on the order, so the measurement has to be taken before you buy. If the opening isn't measured yet and you need one part to cover either case, the Brinks Mendocino E2402 is a single cylinder deadbolt with a four way adjustable backset.
3) Can the Emtek 8423 be keyed to match the Schlage keys already on my building?
The 8423 comes with a Schlage C keyway cylinder as standard, so it accepts Schlage C keys and can be cut to an existing C key code. Keying is a free option when you order: keyed alike across a group of doors, keyed different, or keyed to a code you supply. If you are standardizing a building or a set of units, put the whole group on one order keyed alike rather than rekeying in the field.
4) My property runs on Weiser keys. Can I get the Emtek 8423 with a Weiser keyway?
Yes. The 8423 is available with a Weiser WR5 cylinder in place of the standard Schlage C, ordered by adding a W to the beginning of the product code, and there is no upcharge for the cylinder substitution. It can be keyed into an existing Weiser system, so the key that already runs the property runs this deadbolt too. Both keyways are offered across all seven finishes, so the keyway decision doesn't limit the look.
5) Will the Emtek 8423 work on a 1-3/8 inch door, or on a thicker 2 inch entry door?
Both are within range. Door thickness runs 1-3/8 to 2 inches, and the single cylinder version includes an extension collar for thin doors so the cylinder sits properly instead of standing proud. The build is 1-3/4 inches as standard, so anything other than that needs the thickness called out on the order. Above 2 inches this is the wrong part. The Corbin Russwin DL3011 cylindrical deadlock covers 1-3/4 to 2-1/4 inch doors, though it is a cylinder by blank plate function rather than a thumbturn.
6) Is the Emtek 8423 Disc deadbolt rated for a commercial entry door?
The 8423 Disc is a residential deadbolt. It suits apartment and condo entries, single family front doors, and owner or interior doors in multi-family. For a commercial opening that has to carry a grade, look at the Accentra D111, a Grade 1 cylinder by thumbturn deadbolt, or the Hager 3115, a Grade 2 cylinder by thumbturn deadbolt that carries a fire rating and uses the same Schlage C keyway the Emtek does, so a building already on Schlage C keys stays on one system.
7) There's glass beside my door. Does the Emtek 8423 take a key on both sides?
No, it doesn't. The 8423 is single cylinder, key outside and thumbturn inside, so anyone reaching through broken glass or a sidelight can turn the bolt. Where you want a key required on both faces, the Baldwin Reserve Contemporary Round and Contemporary Square deadbolts are double cylinder in a comparable modern look, and the Callan 210S is a Grade 3 double cylinder. Check the local egress code before committing, since double cylinder deadbolts are restricted on some dwelling exit doors.
8) The Emtek 8423 Disc deadbolt is a residential deadbolt. What single cylinder deadbolt do I use when the drawing calls out ANSI Grade 1?
The Emtek 8423 Modern Disc is classified residential. Where the spec names Grade 1 with the same key outside, turn inside operation, the Dexter DB1000 single cylinder deadbolt is Grade 1 and covers 1-3/8" to 1-7/8" door thickness. The Accentra D111 is a Grade 1 single cylinder deadbolt with a 2-3/8" backset covering 1-3/8" to 1-3/4". The Deltana CL200LM is a Grade 1 single cylinder deadbolt. All three are cylinder x thumbturn, the same function as the 8423.
9) I need a single cylinder deadbolt on a Schlage C keyway for a fire rated opening. What can I key alike with the rest of the building?
The Emtek 8423 Modern Disc uses the Schlage C keyway as standard, so it keys into a Schlage C system, and it is a residential deadbolt. On the commercial side of the same keyway, the Hager 3115 is a Grade 2 cylinder x thumbturn deadbolt with a Schlage C keyway, fire rated, covering 1-3/8" to 1-3/4" doors. The Hager 3215 is a Grade 2 single cylinder deadbolt with a 1" throw, also fire rated over the same thickness range. The Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt with a UL 3 hour fire rated latch and cylinder x thumbturn function.
10) The 8423 has a thumbturn inside. What do I use on a door with glass beside it where a thumbturn will not pass?
The Emtek 8423 Modern Disc is single cylinder, cylinder x thumbturn, so it is keyed outside and turned by hand inside. For a double cylinder deadbolt keyed on both faces, the Baldwin Reserve Contemporary Round and Contemporary Square deadbolts are both double cylinder, and the Baldwin Estates 8011 is a contemporary 1-5/8" double cylinder deadbolt. On the graded side, the Dexter DB1000 double cylinder is Grade 1 covering 1-3/8" to 1-7/8", and the Dexter DB2000 double cylinder is Grade 2 covering 1-3/8" to 1-3/4". Confirm the local egress code permits a keyed inside cylinder on that opening before ordering.
11) I am ordering deadbolts before anyone measures the bore. What single cylinder deadbolt adjusts between 2-3/8 and 2-3/4 backset in the field?
The Emtek 8423 Modern Disc ships with a 2-3/8" backset latch as standard and 2-3/4" is specified at order. If the backset has to be settled at the door instead, the Brinks Raleigh E2401 and the Brinks Mendocino E2402 are single cylinder cylinder x thumbturn deadbolts with a 4 way adjustable backset. The Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with an adjustable backset covering 1-3/8" to 1-3/4" doors, and the Falcon D111 is a Grade 1 heavy duty deadbolt with an adjustable backset.
12) What do I have to specify when ordering an Emtek 8423 deadbolt?
Four decisions. Backset, 2-3/8 or 2-3/4 inches, with 2-3/8 as the standard latch. Door thickness, if the door is anything other than 1-3/4 inches, within the 1-3/8 to 2 inch range. Keyway, Schlage C as standard or Weiser WR5 by adding a W to the front of the product code at no upcharge. And finish, one of seven. Keying itself is free either way, keyed alike, keyed different, or cut to a code you provide. Handing is not part of the order.
13) Do I need to know the door swing or handing before ordering the Emtek 8423?
Handing isn't required. One part number covers left and right hand doors, and the key goes outside with the thumbturn inside either way. That makes it straightforward to order in quantity across a building where the swings vary. Backset and door thickness are the two things you do need off the opening.
14) Does the Emtek 8423 deadbolt come with a strike plate?
A brass trim strike ships with every 8423, and behind it goes a heavy gauge steel understrike that carries the load into the jamb. The bolt is hardened steel. Nothing else has to be bought to complete a standard install on an already prepped door.
15) What finishes does the Emtek 8423 Disc deadbolt come in, and will they hold up matching across a set of doors?
Seven finishes: Oil Rubbed Bronze (US10B), Polished Nickel (US14), Satin Nickel (US15), Flat Black (US19), Polished Chrome (US26), Unlacquered Brass (US3NL), and Satin Brass (US4). Each one is available with either the Schlage C or the Weiser WR5 cylinder, so keyway and finish are independent choices. Worth planning for on a fleet of doors: US3NL is unlacquered, so it darkens and patinas with handling instead of holding its as-shipped color, while the plated finishes stay where they started.
16) How does the Emtek 8423 Disc compare to other contemporary round deadbolts?
The Disc is Emtek's round contemporary trim in solid brass, single cylinder, on standard tubular prep with a Schlage C keyway and seven finishes. Among the alternatives, the Bravura 310RC Elite is a Grade 2 contemporary round cylinder by thumbturn deadbolt, and the Bravura 310SC Elite is the square-trim version of the same thing. If the design leans square, the Brinks Mendocino E2402 is a contemporary square single cylinder. All of them key outside and turn inside; what separates them is trim shape, material, and whether the backset is fixed or adjustable.
17) I want a thumbturn on the inside with no key cylinder on the outside. Is there a deadbolt like that?
Not from the Emtek 8423 Modern Disc, which is keyed and single cylinder. For a turn inside with no outside key, the Arrow E60 is a Grade 2 exit deadlock with blank plate x thumbturn function, covering 1-3/8" to 1-3/4" doors. Where the door has no cross bore straight through, the Callan 205S is a Grade 3 one sided half-bore deadbolt. Both are non-keyed answers to an opening the 8423 would be keyed for.
18) Will a BEST 8T tubular deadbolt component work in place of an Emtek 8423 deadbolt?
No. The BEST 8T is the tube component of the T Series tubular deadbolt, not a complete keyed deadbolt. The Emtek 8423 Modern Disc is a complete tubular single cylinder deadbolt with the cylinder, housing, collar, thumbturn and rosette in solid brass, a hardened steel bolt, a heavy gauge steel understrike and a brass trim strike. Two other parts that come up in the same search are also not locks: the Baldwin Reserve 8BR0618001 is a deadbolt spacer, and the Arrow 460 is a mortise lock strike with a straight lip.
19) The building is keyed on small format interchangeable cores. What deadbolt takes my own core instead of a Schlage C cylinder?
The Emtek 8423 Modern Disc ships with a Schlage C cylinder as standard, or a Weiser WR5 cylinder when specified. To install your own core, the Arrow E61 26D IC is a Grade 2 single cylinder deadlock with SFIC prep, supplied less core, covering 1-3/8" to 1-3/4" doors. The Deltana CL200LAIC is a Grade 2 single cylinder deadbolt prepped for an interchangeable core with a 2-3/4" backset. The Delaney LM Series is a Grade 1 single cylinder less core deadbolt in dull chrome US26D.
20) What is the keypad or credential equivalent to a keyed Emtek 8423 deadbolt?
The Emtek 8423 Modern Disc is a mechanical keyed deadbolt with no electronics. For a credentialed opening in the same deadbolt position, the Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote. The Codelocks CL2200 is a medium duty electronic surface deadbolt in brushed steel, and the Codelocks CL2210 is an electronic mortise deadbolt. For multifamily and hospitality, the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override, and the Dormakaba Nova-D is an RFID multihousing smart electronic deadbolt.
21) Is the Emtek 8423 solid brass all the way through, or brass plated over something else?
Solid brass on the cylinder, housing, collar, thumbturn, and rosette. The parts that take the load are steel: a hardened steel bolt and the heavy gauge steel understrike behind the strike plate. That split is the thing to know on a brass deadbolt. The brass is what you see and what carries the finish, the steel is what resists force at the jamb.
How fast can I get the Emtek 8423-US19 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Emtek 8423-US19 come with a warranty?
Absolutely. The Emtek 8423-US19 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Emtek 8423-US19?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Emtek 8423-US19 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.