Corbin Russwin DL4160 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$417.20
$299.32
Corbin Russwin DL4160 Grade 1 Mortise Deadlock, Thumbturn x Blank

Corbin Russwin DL4160 Grade 1 Mortise Deadlock, Thumbturn x Blank

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Model: DL4160 626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$417.20
$299.32
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Corbin Russwin DL4160-NON-KEYED Mortise Deadlock Thumbturn x Blank, Non-Handed Commercial Grade

Commercial Mortise Deadlock with Thumbturn Inside Operation and Blank Opposite Side

The Corbin Russwin DL4160 is a commercial-grade mortise deadlock from the DL4100 Series, engineered for demanding door security applications. Operated by thumbturn inside only with a blank opposite side, this non-handed lock installs on doors 1-3/4" to 2-1/4" thick with a standard 2-3/4" backset. The heavy wrought steel lockcase with zinc dichromate finish and steel deadbolt with hardened pin and 1" throw deliver robust, reliable security for commercial environments.

Professional Features & Benefits

  • Door Thickness Compatibility: Accommodates standard 1-3/4" (44mm) door thickness with optional thicknesses available via Quick Codes, supporting a range of 1-3/4" to 2-1/4" for versatile commercial installations.
  • Standard Backset: Factory-set 2-3/4" (70mm) backset meets standard commercial door preparation requirements for straightforward installation.
  • Heavy-Duty Deadbolt: Steel deadbolt with hardened pin and 1" (25mm) throw provides strong resistance to forced entry in high-security commercial applications.
  • Robust Lockcase Construction: Heavy wrought steel lockcase with zinc dichromate finish ensures long-term durability and corrosion resistance in demanding environments.
  • Adjustable Front Plate: Brass, bronze, or stainless steel front measuring 4-5/8" (117mm) x 1-1/8" (29mm) is adjustable for flat or beveled doors with a bevel adjustment of 1/8" (3mm) in 2" (51mm) for precise fitment.
  • Standard Strike Included: Wrought brass or bronze strike measuring 3-1/2" (89mm) x 1-1/8" (29mm) included; optional strikes also available for varied frame conditions.
  • Non-Handed Design: Universal non-handed configuration simplifies ordering and installation, eliminating handing errors on commercial projects.
  • Manufacturer Warranty: 1 Year Limited warranty for added confidence and protection.

Technical Specifications

  • Subcategory: Deadlocks
  • Product Group: Mechanical Locks
  • Series: DL4100 Series
  • Keyed Function: Non-Keyed
  • Standard Latch: Deadbolt: Steel with hardened pin, 1" Throw
  • Standard Strike: 3-1/2" x 1-1/8"
  • Warranty: 1 Year Limited
  • Product Subgroup: Mortise Locks and Trim
  • Product Type: Mortise Deadlocks
  • Keyed: No
  • Commercial/Residential: Commercial
  • Function Description: By thumbturn inside only, opposite side blank.
  • Lock Type: Mortise
  • Lock Function: Deadbolt
  • Product Model: DL4160
  • Product Function: Deadbolt
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4" to 2-1/4"
  • Product Category: Mechanical Locks
  • Backset (Distance): 2-3/4"
  • Department: Door Hardware

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Corbin Russwin Quality?

Corbin Russwin mortise deadlock products deliver professional-grade reliability with heavy wrought steel lockcase construction, a zinc dichromate finish, and a steel deadbolt with hardened pin rated for a full 1" throw. The DL4100 Series is backed by a 1 Year Limited warranty and engineered for demanding commercial applications where dependable door security performance is essential.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Deadlocks
Product Group:
Mechanical Locks
Series:
DL4100 Series
Keyed Function:
Non-Keyed
Standard Latch:
Deadbolt: Steel with hardened pin, 1" Throw
Standard Strike:
3-1/2" x 1-1/8"
Warranty:
1 Year Limited
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Deadlocks
Keyed:
No
Commercial/Residential:
Commercial
Function Description:
By thumbturn inside only, opposite side blank.
Lock Type:
Mortise
Lock Function:
Deadbolt
Product Model:
DL4160
Product Function:
Deadbolt
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4" to 2-1/4"
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin DL4160 626 – Frequently Asked Questions

1) Will the Corbin Russwin DL4160 deadlock fit a 2 inch thick door?
Yes. The DL4160 mortise deadlock covers a door thickness range of 1-3/4 inches through 2-1/4 inches, so a 2 inch door is inside the range. Standard commercial doors at 1-3/4 inches are the base case, and the thicker sizes are handled through the ordering options. The front plate is adjustable for flat or beveled doors, with a bevel adjustment of 1/8 inch in 2 inches.
2) Do I need to specify a hand when ordering the DL4160 mortise deadlock?
No handing to specify. The DL4160 is non-handed, so one part covers left and right hand openings, inswing or outswing. That also means you can stock a single item for a building full of doors instead of splitting the order by hand.
3) Is the DL4160 deadlock keyed, or does it only lock from one side?
Thumbturn inside only, and the outside face is blank. There is no cylinder and no key on the DL4160, so nobody can retract or throw the bolt from the opposite side. That makes it right for a door you want secured from within, a stockroom or mechanical room locked by whoever is inside, or a leaf of a pair held by the person in the space. If you need key access from the outside, this is the wrong function in the DL4100 Series.
4) Will the DL4160 drop into an existing mortise pocket on my commercial door?
It uses a 2-3/4 inch backset, which is the standard commercial mortise prep, so an existing pocket cut for a standard mortise lock is the right geometry. The front measures 4-5/8 by 1-1/8 inches. Check that your existing face cutout matches that front before you commit, since a pocket prepped for a different front size will need filling or a wrap.
5) Does the DL4160 mortise deadlock come with a strike, or do I order one separately?
A strike is included: wrought brass or bronze, 3-1/2 by 1-1/8 inches. Optional strikes are available for other frame conditions, so if you are going into an existing frame with a different cutout or a rabbeted pair, specify the alternate strike on the order rather than assuming the standard one will line up.
6) How far does the deadbolt on the Corbin Russwin DL4160 throw?
A full 1 inch throw, on a steel bolt with a hardened pin through it. The 1 inch projection is what lets the bolt reach deep into the frame on a commercial opening, and the hardened pin resists a saw attack on the bolt itself. Make sure the strike pocket in your frame is deep enough to take the full inch, otherwise the bolt will not fully extend and the lock will feel like it is binding.
7) Should I use a mortise deadlock like the DL4160 or a surface mounted deadbolt?
A mortise deadlock goes inside the door edge, so the lockcase is concealed in a pocket and the only thing visible is the front plate and the thumbturn. That is the choice when the door is already prepped for mortise hardware or when you want nothing to pry against on the surface. A surface bolt or rim device is what you use when the door cannot be pocketed, on a hollow core or a door too thin to route. The DL4160 needs a door in the 1-3/4 to 2-1/4 inch range and a standard 2-3/4 inch backset pocket.
8) Can I add the DL4160 deadlock above an existing lockset for extra security on the same door?
Yes, that is the common use. A mortise deadlock carries no latch and no lever trim, just the bolt, so it goes in as a second point of security above or below a handleset or a lockset that handles the day to day latching. Because it is non-handed, it works the same on either leaf. You will need a second mortise pocket at 2-3/4 inch backset and a matching strike location in the frame.
9) What finishes does the Corbin Russwin DL4160 deadlock come in?
Seven finishes: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil-rubbed satin bronze, 625 bright chrome, 626 satin chrome, and BSP black suede powder coat. If you are matching existing openings in a building, 626 satin chrome is the usual commercial standard and 613 is the common dark bronze. The finish code is the number to match against the rest of your door hardware, not the color name.
10) Is the DL4160 deadlock built for a high traffic commercial door or is it residential grade?
Built for commercial duty. The lockcase is heavy wrought steel with a zinc dichromate finish for corrosion resistance, and the bolt is steel with a hardened pin. It is catalogued as commercial, not residential, and is used in office buildings, schools, healthcare, retail, warehouses, multi-tenant residential, and government facilities.
How fast can I get the Corbin Russwin DL4160 626 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 Corbin Russwin DL4160 626 come with a warranty?
Absolutely. The Corbin Russwin DL4160 626 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 Corbin Russwin DL4160 626?
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 Corbin Russwin DL4160 626 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.

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