Sargent 489 Grade 1 Exit Funct...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$257.00
$164.62
Sargent Sargent 489 Series - Exit Function Non-Keyed Heavy Duty Deadbolt, Grade 1 SGT-489

Sargent 489 Grade 1 Exit Function Deadbolt with 1" Throw Bolt - Heavy Duty Non-Keyed Commercial Lock

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Model: 489 26D
$257.00
$164.62
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$257.00
$164.62
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Sargent 489 Series Grade 1 Exit Function Deadbolt with 1" Throw Bolt - Heavy Duty Commercial Lock

Professional Exit-Only Security Solution

The Sargent 489 Series Grade 1 Exit Function Deadbolt is engineered for exit-only doors where keyed entry is not required. This heavy-duty commercial lock features a non-keyed design with interior thumbturn operation and 1" hardened steel throw bolt. Built to ANSI/BHMA Grade 1 standards with door thickness compatibility from 1-3/4" to 2", this deadbolt provides secure egress without exterior access for emergency exits, mechanical rooms, and restricted areas.

Professional Features & Benefits

  • Door Compatibility: Accommodates 1-3/4" to 2" door thickness with 2-3/8" standard backset (2-3/4" optional) for versatile installation requirements.
  • Grade 1 Certification: ANSI/BHMA Grade 1 certified for the highest level of durability and strength in demanding commercial environments.
  • Heavy-Duty Construction: Reinforced steel case with brass components and hardened steel deadbolt provides exceptional durability for commercial applications.
  • Exit Function Design: Interior thumbturn operates the deadbolt with no outside cylinder, providing secure egress while preventing exterior access.
  • Anti-Tampering Protection: 1" throw hardened steel bolt with anti-saw design resists forced entry and tampering attempts.
  • Universal Installation: Non-handed reversible design works with left- or right-swing doors for flexible installation options.
  • Professional Applications: Ideal for emergency exits, stairwells, mechanical rooms, utility doors, and other restricted access areas requiring secure egress.
  • Manufacturer Warranty: 30 Year Limited warranty for added confidence and long-term protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1-3/4" to 2", backset options, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Emergency Exit Doors
  • Mechanical and Utility Rooms
  • Stairwell Access Points
  • Back-of-House Commercial Spaces
  • Restricted Access Areas
  • Fire Exit Compliance Applications
  • Industrial Facility Security Points

Why Choose Sargent Quality?

Sargent 489 Series deadbolts deliver professional-grade reliability with reinforced steel case construction and hardened steel components rated to ANSI/BHMA Grade 1 standards. The 30 Year Limited warranty provides exceptional long-term value and protection. Engineered for demanding commercial applications where dependable exit function and security are essential, this non-keyed design ensures safe egress while maintaining restricted exterior access.

Manufacturer Resources

SARGENT Full Line Catalog

Product Specs

Series:
480 Series
Grade:
Grade 1
Keyed:
No
Subcategory:
Deadbolts
Keyed Function:
Non-Keyed
Product Type:
Deadbolts
Commercial/Residential:
Commercial
Lock Function:
One-Sided
Product Group:
Mechanical Locks
Product Subgroup:
Deadbolts
Duty Level:
Heavy Duty
Product Attribute:
Deadbolts
Product Function:
Blank Plate x Thumbturn
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent 489 26D – Frequently Asked Questions

1) Which backset do I order on the Sargent 489, 2-3/8 or 2-3/4?
Both are orderable, so measure the existing cross-bore first: backset is from the door edge to the center of the bore, and 2-3/8 and 2-3/4 inches are the two standard commercial dimensions. On a retrofit, match whatever is already drilled or the bolt will not line up with the strike. On new prep, either works; 2-3/4 is the more common commercial spec on wider stiles.
2) Will the Sargent 489 deadbolt reach my existing strike?
It throws a 1 inch hardened steel bolt, which is full commercial throw and reaches into a standard frame strike pocket without a shim. Two strikes are offered with it: the 404 2-3/4 inch standard strike, and the 408 ANSI 4-7/8 inch flat lip strike. If your frame is already prepped to the ANSI 4-7/8 cutout, order the 408 and you drop into the existing frame prep. If the frame has the smaller T-strike cutout, take the 404.
3) Is the Sargent 489 deadbolt Grade 1?
Grade 1, which is the heaviest of the ANSI/BHMA durability grades and the one most institutional and government specs call for on commercial openings. It is built as a heavy duty commercial device, not a residential-duty bolt, with a reinforced steel case and a hardened steel bolt. If a facility spec sheet says Grade 1 deadbolt, the 489 meets that line item.
4) What is the difference between the Sargent 489 and the Arrow E60 exit deadlock?
Same idea, different duty level and door range. Both are non-keyed blank-plate-by-thumbturn exit deadlocks. The Arrow E60 is Grade 2 and covers 1-3/8 to 1-3/4 inch doors; the Sargent 489 is Grade 1 and covers 1-3/4 to 2 inch. So if the door is 1-3/8 inch, the E60 fits and the 489 does not. If the door is 2 inches thick, or the spec calls for Grade 1, the 489 is the one.
5) I need a Grade 1 deadbolt that can be keyed from outside, not an exit-only one. What should I look at instead?
The 489 will not do it, since the exterior side is a blank plate with no cylinder. For keyed outside access at Grade 1, the Corbin Russwin DL3011 cylindrical deadlock takes a cylinder and covers 1-3/4 to 2-1/4 inch doors, which is the closest match on door range. The Accentra D111 is Grade 1 cylinder by thumbturn on 1-3/8 to 1-3/4 inch doors, and the Falcon D111 is a Grade 1 heavy duty cylinder-by-thumbturn deadbolt with adjustable backset.
6) I have a 1-3/8 inch door and want a non-keyed deadbolt. Will the Sargent 489 work?
No. The 489 starts at 1-3/4 inches and goes to 2 inches, so a 1-3/8 inch leaf is under range. The Arrow E60 exit deadlock is the same blank-plate-by-thumbturn function and covers 1-3/8 to 1-3/4 inch doors, though it is Grade 2 rather than Grade 1. For a one-sided half-bore deadbolt on a lighter door, the Callan 205S is a Grade 3 one-sided option.
7) What is the closest non-keyed exit deadbolt to the Sargent 489?
The Arrow E60 exit deadlock is the nearest match in function. Both are non-keyed with a Blank Plate x Thumbturn function, so the thumbturn on the secure side throws the bolt and the outside face carries no cylinder. The difference is the certification level: the Sargent 489 is ANSI/BHMA Grade 1, and the Arrow E60 is Grade 2. The Arrow E60 lists a door thickness range of 1-3/8 inch to 1-3/4 inch, while the Sargent 489 covers 1-3/4 inch to 2 inch doors, so on a 1-3/8 inch door the Arrow is the one that fits and on a 2 inch door the Sargent is.
8) My door is 2-1/4 inches thick. What Grade 1 deadlock covers it?
The Sargent 489 is built for 1-3/4 inch to 2 inch doors, so a 2-1/4 inch leaf is past its range. The Corbin Russwin DL3011 is a Grade 1 cylindrical deadlock listing a door thickness range of 1-3/4 inch to 2-1/4 inch, which reaches that thickness. Note the function change: the DL3011 is a Cylinder x Blank deadlock, so it is keyed from one face rather than turned by a thumbturn, and it will not give you the thumbturn egress the Sargent 489 provides.
9) We key our building to SFIC. Which deadbolt do we use where the Sargent 489 would go?
The Sargent 489 is a non-keyed lock, so there is no cylinder to core - it cannot join an SFIC keying system. The Arrow E61 in 26D is a Grade 2 single cylinder deadlock supplied with SFIC prep less core, so your locksmith drops your own core in, and it lists a 1-3/8 inch to 1-3/4 inch door thickness range. The Deltana CL200LAIC is a Grade 2 single deadbolt for interchangeable core with a 2-3/4 inch backset, which matches one of the two backsets the Sargent 489 is offered in.
10) Do I have to specify handing on the Sargent 489 deadbolt?
No handing to specify. The 489 is non-handed and reversible, so the same part goes on a left-hand or right-hand swing door. For a property manager standardizing across a building, that means one part number covers every opening regardless of swing, and there is no wrong-hand return to deal with.
11) What do I need to specify when ordering a Sargent 489 deadbolt?
Three choices: backset (2-3/8 or 2-3/4 inch), strike (404 standard 2-3/4 inch or 408 ANSI 4-7/8 inch flat lip), and finish. Finishes run 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B dark oxidized satin bronze oil rubbed, 10BE dark oxidized satin bronze, 14 bright nickel, 15 satin nickel, 26 bright chrome, 26D satin chrome, plus BSP black suede powder coat and WSP white suede powder coat. There is no cylinder or keying to specify, because the outside is a blank plate.
12) Is a one-sided deadbolt like the Sargent 489 right for a stairwell or mechanical room door?
That is exactly what it is built for. Someone inside can throw or retract the bolt by hand at the thumbturn, and there is no way to work it from the corridor side, so you get secure egress without giving anyone outside a way in. Typical uses are emergency exit doors, stairwell access, mechanical and utility rooms, and back-of-house. One caution for a code review: a deadbolt requiring a separate thumbturn action is not itself panic hardware, so on an opening that requires a listed exit device you need that device, not this bolt.
13) Does the Sargent 489 come with a strike, or do I order that separately?
A strike is part of the order, not a separate line. You pick between the 404 standard 2-3/4 inch strike and the 408 ANSI 4-7/8 inch flat lip strike when you configure the bolt. Pick from the frame prep you already have: hollow metal frames prepped to ANSI take the 408, older or wood frames with the small cutout take the 404.
14) Is the Callan 205S one-sided deadbolt the same thing as the Sargent 489?
They share the one-sided idea but not the specification. Both operate from a single side with no outside cylinder - the Callan Model 205S is a One-Sided half-bore deadbolt and the Sargent 489 is a Blank Plate x Thumbturn one-sided lock. The Callan 205S is Grade 3, where the Sargent 489 is ANSI/BHMA Grade 1 and heavy duty. The half-bore prep on the Callan is also a different door preparation from a full through-bore, so it is not a drop-in for a door already bored for the Sargent.
15) What is a lighter-duty alternative to the Sargent 489 for an interior storage door?
For interior doors that do not need Grade 1, the Arrow E60 keeps the same non-keyed Blank Plate x Thumbturn function at Grade 2 and covers 1-3/8 inch to 1-3/4 inch doors. If a keyed exterior face is acceptable on that opening, the Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with an adjustable backset for 1-3/8 inch to 1-3/4 inch doors, and the Cal-Royal LSD is a Grade 3 single cylinder deadbolt with an ADA ergonomic thumbturn for the same thickness range. The Sargent 489 remains the Grade 1 heavy duty option where the opening is rated.
16) Can I order the Arrow 460 instead of the strike that comes with the Sargent 489?
No - the Arrow 460 is a mortise lock strike for latchbolt and deadbolt functions with a straight lip, cut for a mortise case, not for a bored deadbolt. The Sargent 489 is supplied with either a 404 2-3/4 inch standard strike or a 408 ANSI 4-7/8 inch flat lip strike, and the frame prep follows whichever of those two you specify. Choose the 408 when the frame is already ANSI 4-7/8 inch prepped.
17) Does the Sargent 489 or a Dexter DB1000 make more sense for a stairwell door?
It depends on whether anyone needs to get in from the stair side. The Dexter DB1000 single cylinder deadbolt is Grade 1 with a Cylinder x Thumbturn function for 1-3/8 inch to 1-7/8 inch doors, so it is keyed from outside. The Sargent 489 has no exterior cylinder at all - it is Blank Plate x Thumbturn, Grade 1, non-handed and reversible, for 1-3/4 inch to 2 inch doors, which is the configuration used where the stair side must stay locked out entirely.
18) Is there a Grade 1 alternative with a fire rated latch?
The Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch and a Cylinder x Thumbturn function, so it is keyed from the outside face. The Sargent 489 sits at the same ANSI/BHMA Grade 1 level and is heavy duty, but it is non-keyed with a thumbturn on one side only, so the two are not interchangeable where an exterior key is on the door schedule.
19) Can I get the Sargent 489 in a painted black or white finish to match storefront doors?
Yes, BSP black suede powder coat and WSP white suede powder coat are both offered, alongside the plated and coated metal finishes. For matching what is already on a building, 26D satin chrome and 10B dark oxidized satin bronze oil rubbed are the two most common commercial pairings, and both are available.
20) What is the difference between the Sargent 489 and the Falcon D111?
The Falcon D111 is a Grade 1 heavy duty deadbolt in a classroom function with a Cylinder x Thumbturn arrangement and an adjustable backset. The Sargent 489 is also Grade 1 and heavy duty but is non-keyed - Blank Plate x Thumbturn - and its backset is fixed by the variant you order, either 2-3/8 inch or 2-3/4 inch. Buyers standardizing a facility often pair them: the Falcon D111 on doors that need key control, the Sargent 489 on exit-only and mechanical room doors that must not open from outside.
21) How many Sargent 489 configurations are there, and does every finish come in both backsets?
The 489 is built out across two backsets, two strikes, and twelve finishes. Not every one of those combinations is stocked as a single part, so confirm the specific backset, strike, and finish together when you order rather than assuming a finish carries across both backsets.
How fast can I get the Sargent 489 26D 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 Sargent 489 26D come with a warranty?
Absolutely. The Sargent 489 26D 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 Sargent 489 26D?
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
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