Adams Rite 4015-15-IB Threshol...
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$100.00
$70.80
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Adams Rite 4015-15-IB Threshold Bolt Two-Point Add-On for MS1850 Two-Point Lock System, 15" Cylinder Height

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Model: 4015-15-IB

In Stock (leaves warehouse same day if ordered before 3pm ET)

$100.00
$70.80
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Adams Rite 4015-15-IB Threshold Bolt Two-Point Add-On for MS1850 Two-Point Lock System, 15" Cylinder Height

The Adams Rite 4015-15-IB is a Threshold Bolt Two-Point component designed as a direct add-on to the Adams Rite MS1850 lock, enabling a complete two-point lock system configuration. Built for commercial door applications, this replacement part features a 15" cylinder height, making it compatible with taller door configurations requiring extended locking reach. As a precision-engineered latch component, it integrates seamlessly with existing MS1850 hardware to deliver reliable two-point locking performance in demanding commercial environments.

Key Features

  • 15" Cylinder Height: Engineered with a 15" cylinder height to accommodate taller door configurations and extended two-point locking spans.
  • Two-Point Lock System Add-On: Designed specifically as an add-on component to the Adams Rite MS1850, completing a full two-point lock system for enhanced door security.
  • MS1850 Compatibility: Direct integration with the Adams Rite MS1850 lock ensures a precise fit and reliable mechanical engagement without modification.
  • Commercial-Grade Construction: Built to commercial-grade standards for use in high-traffic, demanding door hardware applications.
  • Latch Mechanism: Functions as a threshold bolt latch component, providing the lower locking point in a two-point lock assembly for improved door security and alignment.
  • Replacement Part: Serves as a genuine Adams Rite replacement part for restoring or upgrading existing MS1850 two-point lock system installations.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Latches
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 4015-15-IB
  • Features: Adams Rite Parts

Typical Applications

  • Commercial Office Buildings with Storefront Door Systems
  • Retail Establishments Using Aluminum Storefront Doors
  • Educational Facilities Requiring Two-Point Locking
  • Healthcare Institutions with High-Traffic Entry Points
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Commercial Properties

Why Adams Rite 4015-15-IB?

Adams Rite is a trusted name in commercial door hardware, and the 4015-15-IB Threshold Bolt reflects that commitment to precision engineering and reliable performance. With its 15" cylinder height and purpose-built compatibility with the MS1850 two-point lock system, this component ensures proper mechanical engagement and security integrity in commercial latch assemblies. Specified as a genuine Adams Rite replacement part, it provides installers and facilities managers with confidence in fit, function, and long-term durability.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Latches
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
4015-15-IB
Features:
Adams Rite Parts

Adams Rite 4015-15-IB – Frequently Asked Questions

1) Will the Adams Rite 4015-15-IB work with any Adams Rite deadlock, or only the MS1850?
Only the MS1850. Adams Rite builds the 4015 threshold bolt to integrate directly with the MS1850 lock, so it engages mechanically without modification. If the door carries a different deadlock body, this is not the matching two-point component.
2) What does the 15 inch cylinder height mean on the Adams Rite 4015-15-IB, and how do I know it is the right one?
The 15 inch cylinder height is the vertical reach of the bolt assembly from the lock to the threshold. It is the dimension that has to match the distance between your MS1850 lock centerline and the floor. Adams Rite lists the 4015 in different cylinder heights; the -15 is for taller door configurations needing that extended span. Measure the opening before ordering, because a bolt sized for a shorter span will not reach the threshold.
3) Can a Kwikset 84290 plain latch or Deltana drive-in latch be used in place of the Adams Rite 4015-15-IB?
No. The Adams Rite 4015-15-IB is a threshold bolt add-on that provides the lower locking point for the Adams Rite MS1850 two-point lock system in commercial door applications. The Kwikset 84290 is a square corner plainlatch with a 2-3/8 inch backset, and the Deltana DLE23875 is a drive-in entry latch for doors 1-3/8 to 2 inches thick. Those are bored tubular latches that live in a cross-bore and edge-bore in a wood or hollow metal door leaf; they cannot bolt into the threshold or engage an MS1850 body. If the opening uses an MS1850, the 4015-15-IB is the threshold bolt to specify.
4) What else is on the door for a full two-point lock, besides the Adams Rite 4015-15-IB threshold bolt?
Three things have to line up: the MS1850 deadlock in the stile, the 4015 threshold bolt running down to the floor, and a floor strike or threshold prepped to receive the bolt. The 4015-15-IB supplies the lower locking point; the MS1850 supplies the deadbolt into the jamb. If the threshold is not prepped for the bolt, that work is part of the install.
5) Is the Adams Rite 4015-15-IB suitable for aluminum storefront entry doors?
Yes. Storefront is the core application. Aluminum storefront doors in commercial offices, retail, schools, healthcare entries and municipal buildings are exactly where the MS1850 plus threshold bolt combination gets used, and the 4015-15-IB is built to commercial-grade standards for high-traffic openings.
6) I manage a building with existing two-point storefront locks. Can I buy the 4015-15-IB just to repair one door?
That is what it is for. The 4015-15-IB is sold as a genuine Adams Rite replacement part for restoring or upgrading an existing MS1850 two-point installation, so you can swap the threshold bolt without replacing the deadlock or re-prepping the door. Match the 15 inch cylinder height to what is already in the door and the rest of the assembly stays put.
7) Is a drive-in tubular latch like the Deltana DLE23875 an alternative to the Adams Rite 4015-15-IB?
No, and it is a common mix-up. The Deltana DLE23875 is a drive-in entry latch for a bored door with a 1-3/8 inch to 2 inch thickness range, the kind used behind a knob or lever. The Adams Rite 4015-15-IB is a threshold bolt that drops a bolt into the floor as the second point of an MS1850 deadlock system on a storefront door. They solve different problems and are not interchangeable.
8) My door opening needs a fire-rated latch. Does the Adams Rite 4015-15-IB cover that, or is there another part for it?
The 4015-15-IB is a threshold bolt component that completes the lower locking point of an Adams Rite MS1850 two-point system on commercial doors; it is specified for two-point locking rather than as a fire-rated bored latch. Where a UL fire-rated tubular latch is what the drawing calls for, Kwikset offers the 83518 RCAL adjustable square drive UL 3 hour latch and the 83521 RCAL plain latch UL 3 hour for BBL, KNL, CNL and PLL trim. Those are separate parts for bored door prep, not substitutes for an MS1850 threshold bolt.
9) Is the Adams Rite 4015-15-IB an option for adding motorized or electrified locking?
No. The 4015-15-IB is a mechanical threshold bolt add-on for the Adams Rite MS1850 two-point lock, with a 15 inch cylinder height for taller door configurations, and it works purely by mechanical engagement with the MS1850 body. For a motorized locking point, the Emtek LC9-DBLTCH is an EMPowered motorized deadbolt latch. The two are not interchangeable: one is a threshold-mounted bolt for a commercial two-point assembly, the other is a powered deadbolt latch.
10) For a distributor cross-reference, what distinguishes the Adams Rite 4015-15-IB from the other latch parts commonly cross-shopped with it?
The Adams Rite 4015-15-IB is identified by model 4015-15-IB, a genuine Adams Rite replacement part in the threshold bolt two-point family, sized at a 15 inch cylinder height and tied to the MS1850 lock. The parts most often pulled up alongside it serve different prep entirely: the Emtek 83228 is a faceplate and screw set with square corners for a tubular pocket door privacy latch, the Deltana DLP23875 is a drive-in latch with adjustable 2-3/8 or 2-3/4 inch backset, and the Kwikset 84290 is a square corner plainlatch at 2-3/8 inch backset. Backset-based part numbers do not cross to an MS1850 threshold bolt.
How fast can I get the Adams Rite 4015-15-IB 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 Adams Rite 4015-15-IB come with a warranty?
Absolutely. The Adams Rite 4015-15-IB 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 Adams Rite 4015-15-IB?
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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