ABH 1858 Universal Bottom Fire...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$78.00
$74.71
ABH 1858 Universal Bottom Fire Bolt 1858 Series Manual Operation

ABH 1858 Universal Bottom Fire Bolt 1858 Series Manual Operation

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Model: ABH-1858-US26D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$78.00
$74.71
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ABH Universal Bottom Fire Bolt 1858 Series Manual Operation

Professional Fire-Rated Door Security Solution

The ABH 1858 Universal Bottom Fire Bolt provides reliable manual door securing for commercial applications requiring fire-rated performance. This UL listed flush bolt operates through a manual lever mechanism on the door edge, projecting and retracting the bolt through simple up and down movement. Designed for universal compatibility with both wood and metal door installations, this professional-grade hardware delivers dependable security in fire-rated door assemblies.

Professional Features & Benefits

  • Manual Lever Operation: Simple up and down lever movement on door edge provides reliable bolt projection and retraction without complex mechanisms.
  • UL Listed Fire Rating: Certified for use in fire-rated door assemblies ensuring code compliance and safety performance.
  • Universal Door Compatibility: Designed for installation in both wood and metal doors with manufacturer-provided templates for accurate preparation.
  • Commercial-Grade Construction: Built for demanding commercial applications where reliable door securing is essential.
  • BAA Qualified: Meets Buy American Act requirements for government and institutional projects.
  • Flush Bolt Design: Low-profile installation maintains door aesthetics while providing secure bottom bolt engagement.

Technical Specifications

  • BAA Qualified: Yes
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Keyed: N/A
  • Keyed Function: N/A
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Model: 1858
  • Product Subgroup: Surface Bolts
  • Product Type: Flush Bolts
  • Series: 1858 Series
  • Subcategory: Surface Bolts

Professional Applications

  • Fire-Rated Door Assemblies
  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities

Why Choose ABH Quality?

ABH flush bolt products deliver professional-grade reliability with UL listed fire rating certification for demanding commercial applications. BAA qualified construction meets government project requirements while universal door compatibility ensures versatile installation options. Engineered for demanding commercial applications where dependable fire-rated door security is essential.

Manufacturer Resources

ABH Full Line Catalog

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Surface Bolts
Product Type:
Flush Bolts
Subcategory:
Surface Bolts
Commercial/Residential:
Commercial
Keyed:
N/A
Keyed Function:
N/A
Series:
1858 Series
BAA Qualified:
Yes
Product Model:
1858
Product Category:
Door Trim and Accessories
Department:
Door Hardware

ABH ABH-1858-US26D – Frequently Asked Questions

1) Will the ABH 1858 fire bolt work in both wood and hollow metal doors?
Both. The 1858 Universal Bottom Fire Bolt is built for wood and metal door installations, and ABH provides templates for each so the door prep is cut correctly. That is the reason for the "universal" in the name: one bolt covers a mixed opening schedule instead of stocking a wood version and a metal version.
2) Does the ABH 1858 fire bolt cover the top of the door too, or just the bottom?
Bottom only. The 1858 is a bottom bolt, engaging a strike in the floor or threshold. A pair of doors is normally bolted top and bottom, so plan on a matching head bolt for the same leaf; the ABH 1858 covers the floor end of that pair.
3) Is the ABH 1858 flush bolt Buy American Act compliant for a federal job?
BAA qualified, yes, which is why it clears on GSA, municipal, and other federally funded work where the hardware schedule has to meet Buy American Act sourcing. It is specified as commercial grade hardware, not residential.
4) What is a comparable manual bottom flush bolt to the ABH 1858 for a fire-rated metal door?
The ABH 1858 is a manual bottom fire bolt operated by a lever on the door edge, UL listed for fire-rated door assemblies and prepped for both wood and metal doors. The closest manual equivalent is the Ives FB457 manual flush bolt with a 12 inch rod length for metal doors, which carries a fire rating. The FB457 is specified by rod length, so you order it to the distance from the bolt housing to the door edge, while the 1858 is a universal bottom bolt covering wood and metal preps with the manufacturer templates. If the job is a government or institutional project with Buy American requirements, the 1858 is BAA qualified.
5) When should I use an automatic flush bolt instead of the ABH 1858 manual bolt?
The ABH 1858 requires someone to throw and retract the bolt by hand at the door edge. On a pair of doors where the inactive leaf must release whenever the active leaf opens, an automatic bolt is the correct choice instead: 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 supplied with an auxiliary fire latch. Manual bolts like the 1858 suit inactive leaves that stay secured and are only released deliberately.
6) What is the difference between the ABH 1858 and a cylinder-operated flushbolt like the Adams Rite 1870?
The ABH 1858 has no keyed function at all; it throws and retracts by hand from the door edge. The Adams Rite 1870 series is a cylinder-operated flushbolt with key control, and the Adams Rite 1877 is a cylinder-operated flushbolt for paired wood doors, both of which are worked with a key rather than a lever. If your security plan calls for the inactive leaf to be controlled by key from the outside, a cylinder-operated bolt is what you want; if the leaf is set from the inside by staff, the 1858 is the manual option.
7) Can I use a 6 inch decorative flush bolt in place of the ABH 1858 on a fire-rated opening?
No. The ABH 1858 is UL listed for fire-rated door assemblies, and that certification is the reason it goes in a fire door. Bolts such as the Delaney 6 inch square end solid brass flush bolt, the Orca Hardware 6 inch flush bolt with radius corners, and the Trimco 3999 6 inch corner mount rounded end flushbolt are sized and finished for standard paired-door duty rather than sold on a fire listing. Use those on non-rated openings and keep the 1858 on the rated ones.
8) What finishes does the ABH 1858 bottom fire bolt come in?
Eight, and the range covers both matching existing trim and blending into a painted door: painted black, satin brass, bright brass, satin bronze, oil rubbed bronze, satin chrome, bright stainless steel, and satin stainless steel. On a mixed building, satin stainless is the usual match for commercial lever and exit hardware, while painted black disappears on a dark hollow metal leaf.
9) What else could I use instead of the ABH 1858 bottom fire bolt on a rated pair?
For a straight manual swap, the Ives FB358 manual flush bolt has a 3/4 inch throw and a 1/2 inch bolt diameter and carries a fire rating, and the Ives FB457 with a 12 inch rod is the metal door version. If the inactive leaf needs to release itself, the Ives FB41 automatic set for wood doors is rated for 90 minutes. For two point control off one operation, the Adams Rite MS1880 and MS1881 two point flushbolts use an interlock mechanism, and the MS2180 Series adds auto release. Decorative six inch flush bolts like the Trimco 3999 corner mount or the Orca 86SQ are a different job; they are not the fire rated bolt the 1858 is.
10) Will the ABH 1858 flush bolt sit flush in the door edge or stick out?
It mortises into the edge of the door so the face plate sits flush, with only the operating lever exposed. Nothing projects into the gap between leaves, so it will not interfere with astragals or the meeting stile the way a surface mounted barrel bolt does. Cut the prep from the ABH template for your door material.
11) Is a two-point flushbolt an alternative to the ABH 1858 bottom bolt?
They solve different halves of the opening. The ABH 1858 is a bottom bolt securing the inactive leaf into the threshold. The Adams Rite MS1880 and MS1881 are two-point flushbolts with an interlock mechanism, and the Adams Rite MS2180 is an auto-release two-point flushbolt with a Smartlock mechanism; a two-point unit engages top and bottom from a single operation. Choose a two-point set when one action must secure both ends of the leaf, and the 1858 when you are handling the bottom point on its own.
12) What flush bolt should I use if the door edge prep is a mortise pocket rather than a universal bottom bolt prep?
The ABH 1858 installs to the ABH templates for wood and metal doors. Where the leaf is already prepped for a mortised slide bolt, the Delaney 7 inch slide type mortise in flush bolt or the Delaney 7 inch mortise extension in flush bolt drop into that existing pocket, and the mortise extension version adds reach for a taller pocket. Confirm the existing prep before ordering, because a bolt cut for one prep will not sit in the other without rework.
13) How does the ABH 1858 compare with the Ives FB358 manual flush bolt?
Both are manual flush bolts carrying a fire rating. The Ives FB358 is specified with a 3/4 inch throw and a 1/2 inch bolt diameter. The ABH 1858 is a universal bottom bolt prepped for both wood and metal doors from the manufacturer templates, offered in painted black, satin bronze, oil rubbed bronze, satin chrome, bright brass, bright stainless steel, satin stainless steel, and satin brass, and it is BAA qualified for government work. If your submittal calls out a specific throw and bolt diameter, match those numbers to the FB358 spec; if the submittal calls for Buy American compliance across mixed wood and metal leaves, the 1858 covers it.
14) Which flush bolt has a stated throw and backset if my drawing specifies those dimensions?
The International Door Closers FB-1202 states its numbers on the part itself: a positive U joint actuator with a 5/8 inch throw, 1/8 inch offset with a 7/8 inch backset, square end, supplied with a guide. That is the one to check against a drawing that calls out throw and backset. The ABH 1858 is chosen instead when the governing requirement is the UL listed fire rating for the door assembly and Buy American qualification.
How fast can I get the ABH ABH-1858-US26D 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 ABH ABH-1858-US26D come with a warranty?
Absolutely. The ABH ABH-1858-US26D 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 ABH ABH-1858-US26D?
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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