International Door Closers 31/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$42.07
$34.04
International Door Closers 31/32" or 1-1/8" Deadlock/Deadlatch Flat and Radius Face Plates

International Door Closers 31/32" or 1-1/8" Deadlock/Deadlatch Flat and Radius Face Plates

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Model: DH118-FR-AL/DU
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$42.07
$34.04
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International Door Closers 31/32" or 1-1/8" Deadlock/Deadlatch Flat and Radius Face Plates

DT-1850 “Long Throw” Deadlock

  • CYLINDER BACKSET AVAILABLE: - 31/32”, 1-1/8” and 1-1/2”
  • Bolt 1-3/8” throw, made of 5 ply laminated steel with a hardened roller pin in a case hardened center ply for maximum security.
  • Lock accepts standard 1-5/32” Mortise Key or Thumbturn Cylinders with AR MS-Type cam • SPECIFY: Cylinder Backset

 

DH-1820-H “Hook Bolt” Deadlock DH-1820-S “Short Throw” Deadlock

  • CYLINDER BACKSET AVAILABLE: - DH-1820-H: 31/32”,1-1/8” and 1-1/2” - DH-1820-S: 1-1/8”
  • Bolt 1 3/16” throw, made of 5 ply laminated steel with a hardened roller pin in a case hardened center ply for maximum security.
  • Lock accepts standard 1-5/32” Mortise Key or Thumbturn Cylinders with AR MS-Type cam • SPECIFY: Cylinder Backset

 

DL-4510 Deadlatch lock

  • CYLINDER BACKSET AVAILABLE: - 31/32” and 1-1/8”
  • Field reversible for opposite hand
  • Key controlled dogging
  • Latch bolt 1/2” throw, Chrome plated with Delrin insert for smooth, quiet latching
  • Lock accepts standard 1-5/32” Mortise Key or Thumbturn Cylinders with AR MS-Type cam • SS-4510 Strike included, US 26D
  • SPECIFY: Cylinder Backset Hand if pre-handing required

 

Manufacturer Resources

Product Specs

Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Subcategory:
Mortise Locks
Commercial/Residential:
Commercial
Electronic:
No
Product Finish:
Anodized Satin Aluminum/Anodized Dark Bronze
Product Category:
Mechanical Locks
Department:
Door Hardware

International Door Closers DH118-FR-AL/DU – Frequently Asked Questions

1) What cylinder backset do I order for an International Door Closers DT-1850 or DH-1820 aluminum door deadlock?
Cylinder backset is the spec you have to pull off the door before ordering. The DT-1850 long throw deadlock and the DH-1820-H hook bolt are offered in 31/32 inch, 1-1/8 inch and 1-1/2 inch cylinder backsets. The DH-1820-S short throw is a 1-1/8 inch backset lock. The DL-4510 deadlatch comes in 31/32 inch and 1-1/8 inch. Measure from the edge of the stile to the center of the existing cylinder hole and match it exactly; the backset sets where the cylinder lands in the stile and is not adjustable.
2) Which bolt type should I use on a narrow stile aluminum storefront door, hook bolt or straight deadbolt?
Use the hook bolt (DH-1820-H) on sliding doors and on pairs of doors where the bolt has to resist being spread apart, since the hook engages the strike rather than just projecting into it. For a single swinging door into a jamb, the DT-1850 long throw with its 1-3/8 inch bolt gives you the deepest engagement, and the DH-1820-S short throw at 1-3/16 inch suits shallower strike conditions. All three bolts are 5 ply laminated steel with a hardened roller pin in a case hardened center ply to resist sawing.
3) What cylinder fits these International Door Closers storefront deadlocks?
These locks take a standard 1-5/32 inch mortise cylinder, key or thumbturn, with an adaptable MS-type cam. That is the common storefront cylinder, so a shop can key it into an existing master system. Cylinders are specified separately from the lock body.
4) Is the DL-4510 deadlatch handed, and does it come with a strike?
The DL-4510 is field reversible for the opposite hand, so one lock covers left and right openings. If you want it pre-handed, state the hand when ordering along with the cylinder backset. The SS-4510 strike is included in US26D. The latch bolt throws 1/2 inch and is chrome plated with a Delrin insert for quiet latching, and the lock has key controlled dogging so you can hold the latch retracted during business hours.
5) Will one of these work as a replacement for a residential deadbolt like an Arrow DBX61 or Dexter DB2000?
No. The DT-1850, DH-1820 and DL-4510 are mortise style storefront locks that drop into an aluminum stile with a 31/32 inch to 1-1/2 inch cylinder backset and take a 1-5/32 inch mortise cylinder. A bored wood or hollow metal door needs a tubular deadbolt on a 2-3/8 or 2-3/4 inch backset instead, such as the Arrow DBX61 Grade 2 or the Dexter DB2000 Grade 2, which is rated for 1-3/8 to 1-3/4 inch doors.
6) What is the closest alternative to the DT-1850 long throw deadlock for a narrow stile aluminum door?
The DT-1850 is built for narrow stile work: cylinder backsets of 31/32 inch, 1-1/8 inch and 1-1/2 inch, a 1-3/8 inch throw bolt of 5 ply laminated steel with a hardened roller pin, and it takes a standard 1-5/32 inch mortise key or thumbturn cylinder with an AR MS-type cam. The nearest small case mortise alternative is the Dormakaba D900 small case mortise deadbolt, cylinder x thumbturn, supplied keyed different with SC keyways. Standard bored deadbolts such as the Dexter DB1000 single cylinder, Grade 1, fit 1-3/8 to 1-7/8 inch doors and are intended for wood or hollow metal doors with a bored prep, not a narrow aluminum stile.
7) If I need a hook bolt for a sliding or pair of aluminum doors, is there another option besides the DH-1820-H?
The DH-1820-H hook bolt deadlock is available in 31/32 inch, 1-1/8 inch and 1-1/2 inch cylinder backsets with a 1-3/16 inch throw hook bolt. Hook bolts are used where the bolt has to resist the door being pulled sideways out of the keeper. Among the alternatives, the Detex DX Series hinge side locking deadbolts use multi-point security to hold the door at additional points, which is a different way of solving the same pull-open problem. Standard straight-bolt deadlocks such as the Arrow E61 single cylinder deadlock for 1-3/8 to 1-3/4 inch doors do not hook and are meant for swing doors in a frame.
8) What should I use instead of the DL-4510 deadlatch if I need free egress without a key?
The DL-4510 deadlatch has a 1/2 inch throw latch bolt, key controlled dogging, and is field reversible for the opposite hand, with the SS-4510 strike included in US26D. It is keyed on the outside. Where the requirement is a thumbturn-only exit device with no key at all, the Arrow E60 is a non-keyed Grade 2 exit deadlock with a blank plate by thumbturn function for 1-3/8 to 1-3/4 inch doors. For a keyed exit with an interchangeable core program, the Arrow E61 comes SFIC prepped less core.
9) I need a Grade 1 deadbolt on a 1-3/4 inch hollow metal classroom door - is one of these the right lock?
These International Door Closers deadlocks are narrow stile mortise units with 31/32 inch or 1-1/8 inch cylinder backsets, suited to aluminum storefront rather than a standard hollow metal opening. For a 1-3/4 inch institutional door, the Corbin Russwin DL3211 is a Grade 1 cylindrical deadlock with a cylinder by blank function for 1-3/4 inch doors, and the DL3011 covers 1-3/4 inch to 2-1/4 inch. If a thumbturn inside is needed, the Falcon D111 is a Grade 1 heavy duty classroom deadbolt, cylinder by thumbturn, with adjustable backset.
10) I need a keyed deadlock on a commercial door but the frame is hollow metal, not aluminum storefront. What should I look at?
These International Door Closers units are built for narrow aluminum stiles. For a hollow metal or wood commercial door, a cylindrical deadlock is the usual answer: the Corbin Russwin DL3011 is a Grade 1 cylindrical deadlock for 1-3/4 to 2-1/4 inch doors, and the Arrow E61 Grade 2 single cylinder deadlock covers 1-3/8 to 1-3/4 inch doors with SFIC prep less core.
11) Is there a keypad or electronic version of this kind of narrow stile deadbolt?
The International Door Closers deadlocks and deadlatch are mechanical, key and thumbturn operated with no electronics. If the opening calls for code or credential access on a deadbolt, the Codelocks CL200 is a surface deadbolt with key override, the CL2210 is an electronic mortise deadbolt, and the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override. For access control tied to a door position rather than a keypad, the DynaLock 1300 Series is a heavy duty mortise electric deadbolt.
12) What is the difference between the DH-1820-S short throw and the DT-1850 long throw, and when would I choose another lock entirely?
The DT-1850 long throw deadlock projects a 1-3/8 inch bolt and is offered in 31/32 inch, 1-1/8 inch and 1-1/2 inch cylinder backsets. The DH-1820-S short throw projects 1-3/16 inch and is offered in 1-1/8 inch backset only. Both use 5 ply laminated steel bolts with a hardened roller pin in a case hardened center ply. Where the opening is a wood or hollow metal door instead of an aluminum stile, a bored commercial deadbolt like the Hager 3215 single cylinder with a 1 inch throw for 1-3/8 to 1-3/4 inch doors is the more direct fit.
13) Do any alternatives take an interchangeable core if I am standardizing a keying program?
The International Door Closers deadlocks and deadlatch accept a standard 1-5/32 inch mortise key or thumbturn cylinder with an AR MS-type cam. If the facility runs small format interchangeable core, the Arrow E61 is supplied SFIC prepped less core, the Deltana CL200LAIC is a Grade 2 single cylinder deadbolt built for an interchangeable core, and the Delaney LM Series is a Grade 1 single cylinder less core deadbolt in dull chrome US26D.
14) What finishes do these storefront deadlock face plates come in?
Two finishes: anodized satin aluminum and anodized dark bronze, which are the two standard storefront frame colors, so the face plate blends with clear or bronze anodized aluminum doors. Face plates are offered flat and radius, so pick the profile that matches the edge of your stile.
15) Are these locks suitable for a commercial building or are they residential grade?
Commercial. These are storefront mortise deadlocks and a deadlatch, all mechanical with no electronics, intended for aluminum entrance doors in retail and office buildings. The DL-4510 deadlatch with key dogging is the one property managers use where the door has to stay free during open hours and lock at close.
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Does the International Door Closers DH118-FR-AL/DU come with a warranty?
Absolutely. The International Door Closers DH118-FR-AL/DU 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 International Door Closers DH118-FR-AL/DU?
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