Adams Rite 1877 Cylinder-Opera...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$356.00
$225.08
Adams Rite 1877 Cylinder-Operated Flushbolt for Paired Wood Doors

Adams Rite 1877 Cylinder-Operated Flushbolt for Paired Wood Doors

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Model: 1877-626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$356.00
$225.08
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Adams Rite 1877 Cylinder-Operated Flushbolt for Paired Wood Doors

Professional Key-Controlled Security for Inactive Door Leaves

The Adams Rite 1877 Cylinder-Operated Flushbolt provides enhanced key control for the inactive leaf of paired wood doors, preventing unauthorized locking by casual users. This professional-grade flushbolt features a 1-1/4" backset, 3/8" hexagonal stainless steel bolt with 11/16" throw, and accepts standard 1" mortise cylinders. The steel case with corrosion-resistant plating measures 1" x 6" x 1-29/32" and includes a 2-1/4" x 15/16" strike for complete installation.

Professional Features & Benefits

  • Specifically engineered for narrow stile aluminum doors
  • Hollow metal and wood door options available
  • Accepts standard Adams Rite MS® cam mortise cylinders
  • Multiple finish options: US3, US4, US10B, US32, US32D
  • UL Listed models available
  • Compatible with Adams Rite electric strikes for access control
  • An ASSA ABLOY Group brand

Technical Specifications

  • For complete technical specifications, contact Adams Rite at 1-800-626-7590 or visit adamsrite.com.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness and proper clearances for the 1" x 6" x 1-29/32" case dimensions.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on the inactive door leaf for both flushbolt and strike positions.
  3. Prepare door by routing the required mortise cavity and drilling holes as specified in manufacturer instructions for the case and actuator arm.
  4. Install the flushbolt mechanism and secure with provided mounting screws, ensuring proper alignment of the actuator arm and rod/bolt assembly.
  5. Install the strike plate at threshold or header position and mount the armored faceplate in the selected finish option.
  6. Test operation with cylinder installed to verify proper 360° key operation, bolt throw and retraction, and key removal function in locked/unlocked positions. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

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

Why Choose Adams Rite Quality?

Adams Rite 1877 flushbolts deliver professional-grade reliability with steel construction and corrosion-resistant plating engineered for demanding commercial applications. The over-center action mechanism provides the same dependable operation found in MS pivoted bolt deadlocks, ensuring consistent performance in high-security installations. Backed by a 5 Year warranty, this cylinder-operated flushbolt offers the key control and unauthorized access prevention essential for professional door security systems.

Product Specs

Product Group:
Door Trim and Accessories
Series:
1877 Series
Cylinder Included:
No
Warranty:
5 Year
Subcategory:
Flushlocks
Product Subgroup:
Flush Bolts
Commercial/Residential:
Commercial
Tags:
1877 flush bolt, adams rite 1877
Product Model:
1877
Product Dimension:
1" x 6" x 1 29/32"
Face Plate:
1 1/4" x 15 5/8"
Door Strike:
2 1/4" x 15/16"
Product Category:
Door Trim and Accessories
Backset (Distance):
1-1/4"
Department:
Door Hardware
Product Type:
Flush Bolts

Adams Rite 1877-626 – Frequently Asked Questions

1) Will the Adams Rite 1877 flushbolt work on my paired wood doors, or is it only for aluminum?
The 1877 cylinder-operated flushbolt is built for the inactive leaf of paired wood doors, and the same 1877 family covers narrow stile aluminum and hollow metal doors as well. What decides the fit is the pocket you can rout: the case measures 1 x 6 x 1-29/32 inches and the bolt sits on a 1-1/4 inch backset, so the stile has to take that depth. The armored faceplate covers 1-1/4 x 15-5/8 inches.
2) What is the difference between a cylinder-operated flush bolt and a manual lever flush bolt?
A manual flush bolt is thrown by hand with a lever or slide, so anyone who can reach it can lock or unlock the inactive leaf. The 1877 is key-controlled: a mortise cylinder throws and retracts an 11/16 inch bolt, so only a keyholder can secure or release that leaf. Use the cylinder version where casual users keep locking the inactive door and creating egress or access problems. Where key control isn't the issue, a manual set like the ABH 1855S single flush bolt or the Trimco 3999SE 6 inch corner mount is the simpler buy.
3) Will the 11/16 inch bolt on the Adams Rite 1877 reach my existing strike?
The bolt is a 3/8 inch hexagonal stainless steel rod with an 11/16 inch throw, which is shorter than the 3/4 inch throw common on manual flush bolts like the Ives FB358 or the ABH 1855S. If you're swapping into an old mortise, check the existing strike pocket depth against 11/16 inches. The 1877 ships with its own 2-1/4 x 15/16 inch strike, so the clean approach is to install that strike rather than reuse what's in the threshold or header.
4) What flush bolt should I use on a fire-rated pair of wood doors?
The Adams Rite 1877 is a cylinder-operated flushbolt for paired wood doors, keyed so casual users cannot lock the inactive leaf. Where the opening carries a fire label, the Ives FB41 is an automatic flush bolt set for wood doors with a 3/4 inch throw and a 90 minute fire rating, and the Ives FB42 is a top automatic flush bolt for wood doors with an auxiliary fire latch. Automatic bolts throw themselves as the active leaf closes rather than waiting on a key, which is the behavior a labeled pair is usually specified around.
5) What is a key-controlled alternative to the Adams Rite 1877 flushbolt for metal doors instead of wood?
The Adams Rite 1877 is a cylinder-operated flushbolt built around a 1-1/4 inch backset and a 2-1/4 inch by 15/16 inch strike, with the cylinder ordered separately. For a metal-door opening, the ABH 1855S is a manual flush bolt single for metal doors with a 3/4 inch throw, and the Ives FB457 is a manual flush bolt with a 12 inch rod length for metal doors. Both are manual - they are thrown by hand at the bolt rather than by a key - so if key control on the inactive leaf is the requirement, the 1877 is the one that does it.
6) Which flush bolt goes in a narrow stile door where the 1877 case will not fit?
The Adams Rite 1877 case measures 1 inch by 6 inches by 1-29/32 inches and sits behind a 1-1/4 inch by 15-5/8 inch face plate, which is a substantial mortise pocket. Where the stile will not take that, the International Door Closers FB-1202 is a flush bolt with a positive U joint actuator, 5/8 inch throw, 1/8 inch offset and a 7/8 inch backset - a shorter backset than the 1877 asks for. Confirm the stile depth against the backset before you rout either one.
7) What finishes does the Adams Rite 1877 flushbolt come in?
Four: 313 dark bronze anodized, 605 bright brass, 626 satin chrome, and 628 clear anodized. On a storefront or aluminum entry, 313 and 628 are the two that match standard anodized door finishes; 626 is the usual pick when the rest of the building's hardware is satin chrome. The finish covers the armored faceplate you actually see, 1-1/4 x 15-5/8 inches of it.
8) Can I use the Adams Rite 1877 with an electric strike for access control?
Yes, it's compatible with Adams Rite electric strikes, which is the reason to pick a cylinder-operated bolt on a controlled opening: the inactive leaf stays keyed and secure while the active leaf runs on the access control system. The 1877 itself is mechanical, keyed by a 1 inch mortise cylinder, so there's no wiring in the inactive leaf.
9) What do I need to order besides the flush bolt to finish the job on a pair of doors?
Three things beyond the bolt itself. One, a 1 inch mortise cylinder with an Adams Rite MS cam, since none is included. Two, keying to match the building, ordered with that cylinder. Three, confirm the door leaf can be routed for a 1 x 6 x 1-29/32 inch case. The 2-1/4 x 15/16 inch strike and the armored faceplate come with it, so those aren't separate lines.
10) Is the Adams Rite 1877 a residential flush bolt or a commercial one?
Commercial. Steel case with corrosion-resistant plating and a stainless bolt, keyed operation, sized for narrow stile and paired commercial openings. For a residential pair of French doors or an interior double door, a solid brass unit like the Delaney 6 inch square end flush bolt or the Delaney 7 inch slide type mortise bolt is the closer match, and neither needs a cylinder.
11) I'm standardizing flush bolts across a building. Is one 1877 enough per pair of doors?
One 1877 secures the inactive leaf at one point, top or bottom depending on where you set it and where the 2-1/4 x 15/16 inch strike lands, at the header or the threshold. Pairs that need the leaf held top and bottom take two bolts per opening. Order the finish to match the rest of the building's hardware across all four choices (313, 605, 626, 628), and key every cylinder into the same system so one key runs the fleet.
12) Will a 1-1/4 inch backset flush bolt fit a narrow stile door?
1-1/4 inches is the backset on the 1877, measured from the door edge to the bolt centerline, and it's what makes the bolt usable on narrow stile aluminum entries where a wider-backset bolt has nowhere to sit. Compare it to something like the International Door Closers FB-1202, which runs a 7/8 inch backset with a 1/8 inch offset. Measure your stile before ordering: the 1 x 6 x 1-29/32 inch case has to fit inside it.
13) Is there a simpler manual flush bolt than the Adams Rite 1877 if I do not need key operation?
Yes. The 1877 carries a mortise cylinder that is bought separately, so the key control adds a cylinder line to the order. If the inactive leaf only needs to be bolted by hand, the Delaney 4108 is a 6 inch square end solid brass flush bolt, the Orca Hardware 86SQ is a 6 inch flush bolt with radius corners, and the Trimco 3999SE is a 6 inch corner mount square end flushbolt. All three are lever or slide operated at the bolt face with no cylinder involved.
14) Does the Adams Rite 1877 include a fire bolt like the ABH sets do?
No - the 1877 is a cylinder-operated flushbolt whose bolt is thrown and retracted by key. Fire bolts are a separate item: the ABH 1854 is a manual flush bolt set that includes a fire bolt for metal doors, the ABH 1858 is a universal bottom fire bolt with manual operation, and the ABH 1860P/1862P is an automatic flush bolt pair, fire rated 3 hour with a thermal lock. If your opening schedule calls for an auxiliary fire bolt at the top of the inactive leaf, that is an ABH item and not part of the 1877.
15) What is the difference between the Adams Rite 1877 and a slide type mortise flush bolt?
The Adams Rite 1877 throws its bolt through a mortise cylinder ordered separately, which is what keeps a tenant or a cleaner from locking the inactive leaf on their own. A slide type such as the Delaney 4101, a 7 inch slide type mortise in flush bolt, is worked by pushing the slide on the face of the bolt - anyone standing at the door can throw or drop it. The Delaney 4363 is a 7 inch mortise extension flush bolt, which is the same family carried down to a bottom rod. Pick on who you want operating the bolt, not on the mortise itself, since all of them mortise into the leaf edge.
16) Does the key stay in the Adams Rite 1877 or come out when the bolt is thrown?
The key turns a full 360 degrees to throw and retract the bolt, and it comes out in both the locked and unlocked positions. That matters on a maintenance route: the flushbolt can't be left in a state that traps the key, and the over-center action is the same mechanism used in Adams Rite MS pivoted bolt deadlocks.
17) I need to match the finish on existing Adams Rite 1877 flush bolts across a building - what are the options and what else comes close?
The Adams Rite 1877 is offered in 313 Dark Bronze Anodized, 605 Bright Brass, 626 Satin Chrome and 628 Clear Anodized, so a bronze or clear anodized aluminum entrance and a chrome or brass interior pair are all covered from one model. Where a standardization program also has manual bolts to fill in, the Trimco 3999 is a 6 inch corner mount rounded end flushbolt and the Trimco 3999SE is the square end version of the same, so the end profile can be matched to the existing bolts on the other leaves.
How fast can I get the Adams Rite 1877-626 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 Adams Rite 1877-626 come with a warranty?
Absolutely. The Adams Rite 1877-626 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 Adams Rite 1877-626?
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 Adams Rite 1877-626 from ZenSupply?
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