Ives FB458 Single Manual Flush...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$34.70
$18.22
Ives FB458 single manual flush bolt in 625 Bright Chrome finish, full-length side view showing rod, housing, and bolt mechanism

Ives FB458 Single Manual Flush Bolt for Metal Doors with 3/4" Throw and 1/2" Bolt Diameter

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Model: FB458-12 US26D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$34.70
$18.22
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Ives Single Manual Flush Bolt for Metal Doors with 3/4" Throw and 1/2" Bolt Diameter

Professional Manual Flush Bolt Solution for Double Door Applications

The Ives FB458 Single Manual Flush Bolt provides secure anchoring for inactive doors in double door configurations. Featuring a 1/2" diameter bolt tip with 3/4" throw and 7/8" vertical adjustment, this non-handed flush bolt is specifically designed for metal door applications. The round bolt head requires only a punched hole for simplified installation, while the special guide design and flat-sided bolt tip prevent bolt rotation during operation.

Professional Features & Benefits

  • Precise Bolt Specifications: 1/2" diameter bolt tip with 3/4" throw and 7/8" vertical adjustment for reliable door securing performance.
  • Metal Door Optimization: Round bolt head design requires only a punched hole in metal frames for simplified installation with optional strike use.
  • Anti-Rotation Design: Special guide construction with flat-sided bolt tip prevents bolt rotation during operation for consistent performance.
  • Non-Handed Installation: Universal design eliminates handing considerations for flexible installation on either door leaf.
  • Fire-Rated Compliance: UL Listed for 3-hour fire rated openings when top and bottom bolts are used together.
  • Manual Operation Control: Lever-operated mechanism allows precise control - up position retracts bolt for opening, down position projects bolt into strike for secure locking.
  • Standard Rod Configuration: 12" standard rod length measured from center of flush bolt body to bolt tip accommodates typical door heights.
  • Professional Construction: Brass substrate construction with 3/4" backset provides durability for commercial door applications.

Technical Specifications

  • ANSI/BHMA: ANSI A156.16, L04261
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Door Strike: W: 15/16", L: 2-1/4", T: 5/64"
  • Fire Rating: Yes
  • Product Category: Door Trim and Accessories
  • Product Dimension: W: 1", L: 6-3/4", D: 1-1/8"
  • Product Group: Door Trim and Accessories
  • Product Model: FB458
  • Product Subgroup: Flush Bolts
  • Product Substrate: Brass
  • Product Type: Flush Bolts
  • Subcategory: Flush Bolts and Coordinators
  • UL Listing Type: UL Listed 3 Hours, fire rated openings require top and bottom bolt

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness and edge preparation for the 1" x 6-3/4" x 1-1/8" flush bolt body.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door edge and prepare the punched hole for the round bolt head.
  3. Prepare door edge by routing the mortise for the flush bolt body and drilling required holes per manufacturer specifications.
  4. Install the flush bolt assembly into the door edge mortise and secure with provided mounting hardware per manufacturer torque specifications.
  5. Adjust the bolt mechanism for proper alignment ensuring the 7/8" vertical adjustment accommodates the door frame configuration.
  6. Test device operation by moving the lever to up position to retract the bolt and down position to project the bolt, verifying smooth 3/4" throw operation. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Building Double Doors
  • Educational Facility Corridor Doors
  • Healthcare Institution Fire-Rated Openings
  • Retail Store Security Closures
  • Industrial Facility Access Control
  • Multi-Tenant Residential Common Areas
  • Government Building Interior Doors

Why Choose Ives Quality?

Ives FB458 flush bolts deliver professional-grade reliability with brass substrate construction and UL Listed fire rating for demanding commercial applications. The specialized anti-rotation design with flat-sided bolt tip and round bolt head ensures consistent operation while simplifying installation in metal door frames. Engineered for commercial door hardware applications where dependable manual control and fire safety compliance are essential.

Product Specs

Subcategory:
Flush Bolts and Coordinators
Product Group:
Door Trim and Accessories
Product Subgroup:
Flush Bolts
Product Type:
Flush Bolts
ANSI/BHMA:
ANSI A156.16, L04261
Commercial/Residential:
Commercial
UL Listing Type:
UL Listed 3 Hours, fire rated openings require top and bottom bolt
Tags:
fb458 12, ives 458, ives fb 458, ives fb458 us26d
Product Model:
FB458
Door Hand Direction:
Non-Handed
Product Dimension:
W: 1", L: 6-3/4", D: 1-1/8"
Fire Rating:
UL Listed - 3 Hour (top and bottom bolts required)
Door Strike:
W: 15/16", L: 2-1/4", T: 5/64"
Product Category:
Door Trim and Accessories
Product Substrate:
Brass
Department:
Door Hardware

Ives FB458-12 US26D – Frequently Asked Questions

1) Which rod length do I order on the Ives FB458 flush bolt, 12 inch, 24 inch or 48 inch?
Rod length is measured from the center of the flush bolt body to the bolt tip, and 12 inches is the standard. That covers a normal 7 foot leaf where the body sits close to the head or the sill. The 24 inch and 48 inch rods are there for oversized and tall leaves, where the operating lever has to stay at a height a person can reach while the bolt still travels all the way to the head. All three lengths are offered in every finish.
2) How far does the Ives FB458 bolt throw, and will it stay engaged in the frame?
Throw is 3/4 inch on a 1/2 inch diameter bolt tip, so the bolt has to line up with a 1/2 inch punched hole and it drops 3/4 inch into it. The 7/8 inch of vertical adjustment is what takes up the difference between the prep and the door as hung, which matters on a frame that has settled or a leaf that has dropped. The bolt tip is flat sided and runs in a guide, so it cannot spin in the hole and lose its bite over time.
3) Can the Ives FB458 be used on a pair of wood doors?
The Ives FB458 is built for metal door applications - its round bolt head is designed to drop into a punched hole in the metal frame, with strike use optional. For a pair of wood doors, the Adams Rite 1877 is a cylinder-operated flushbolt made for paired wood doors. The 1877 is key-operated rather than lever-operated, so it changes how the inactive leaf is released as well as what door material it suits.
4) What is the closest equivalent to the Ives FB458 flush bolt from another manufacturer?
The ABH 1855S is the nearest match in the ABH line: it is a single manual flush bolt for metal doors with a 3/4 inch throw, the same throw the Ives FB458 carries. Both are single bolts, so a pair of doors that needs one bolt at the head and one at the sill takes two devices either way. Where the FB458 is specified for its fire performance, note that it is UL Listed for 3 hours only when top and bottom bolts are used together, and it is non-handed, so the same part works on either leaf.
5) Will an International Door Closers FB-1202 drop into the same prep as an Ives FB458?
No - the two differ where it matters for the frame prep. The IDC FB-1202 has a 5/8 inch throw, a 1/8 inch offset with a 7/8 inch backset, and a square end with a guide. The Ives FB458 has a 3/4 inch throw with a 3/4 inch backset and a round bolt head that seats in a punched hole, with a strike optional. Different throw, different backset, and a round tip against a square one mean the existing strike or punched hole in the metal frame is unlikely to accept the other bolt without rework.
6) The Ives FB458 is a single bolt - what do I order if I need both the top and bottom bolt for one inactive leaf?
Two FB458 bolts cover it, since the FB458 is a single manual flush bolt and its UL 3-hour rating applies when top and bottom bolts are used together. If you would rather buy the pair as one item, the ABH 1854 Series is a manual flush bolt set with fire bolt for metal doors, so the head and sill positions come in a single set. The FB458 route lets you mix rod lengths between the two positions, since it comes in 12 inch, 24 inch, and 48 inch rods.
7) Is the Ives FB458 flush bolt handed? I am ordering for several openings at once.
Non-handed. The same part goes on a left hand or right hand inactive leaf, top position or bottom position, so there is nothing to specify beyond rod length and finish. That is worth knowing on a multi-opening order: you can buy one line item and let the installer sort out which door it lands on, instead of splitting the count between hands.
8) Manual or automatic flush bolt for a double door, which one should I use?
A manual bolt like the FB458 is thrown by hand at the lever, down to project and up to retract, so the inactive leaf stays bolted until someone deliberately opens it. That is right where the second leaf is opened rarely, for moving furniture or equipment through. An automatic flush bolt retracts itself when the active leaf opens, which is what you want when the inactive leaf gets used regularly or when nobody will be around to reset it. ZenSupply's automatic option is the ABH 1860P/1862P pair, fire rated to 3 hours with a thermal lock.
9) Is there a flush bolt like the Ives FB458 that can only be released with a key?
The Adams Rite 1870 Series is a cylinder-operated flushbolt with key control, so the inactive leaf is released by key rather than by hand. The Ives FB458 is lever-operated: anyone on the bolt side can move the lever up to retract and down to project it. Choose the 1870 where you need to keep tenants or the public from freeing the second leaf, and the FB458 where staff need to open the inactive leaf without carrying a key.
10) Only the bottom flush bolt on our fire-rated metal double door is bad. Is there a bottom-only replacement instead of a full Ives FB458?
The ABH 1858 is a universal bottom fire bolt with manual operation, so it addresses the sill position on its own. The Ives FB458 is also sold as a single bolt and can be used at the bottom position with a 12 inch rod, but on a fire-rated opening the FB458 carries its UL 3-hour listing only when the top and bottom bolts are both in place, so confirm what is installed at the head before you replace one end.
11) What is the difference between the Ives FB458 and a two-point flushbolt like the Adams Rite MS1880?
The Adams Rite MS1880/MS1881 are two-point flushbolts with an interlock mechanism, meaning the head and sill bolts are tied together and driven as one device. The Ives FB458 is a single manual flush bolt, so each position is a separate part with its own lever and its own rod, ordered in 12 inch, 24 inch, or 48 inch lengths. The FB458 approach lets you replace one end without touching the other; the two-point device moves both bolts from one control.
12) We need the inactive leaf to release on its own for egress. What is an alternative to the Ives FB458?
The Adams Rite MS2180 Series is an auto-release two-point flushbolt with a Smartlock mechanism, so both bolts retract without the user reaching for each one. The Ives FB458 holds the inactive leaf until its lever is moved to the up position by hand, at each bolt. On a fire-rated metal pair, weigh that against the FB458 being UL Listed for 3 hours with top and bottom bolts used together.
13) Are the Trimco 3999 and 3999SE flushbolts interchangeable with the Ives FB458?
They solve the same problem but mount differently. The Trimco 3999 is a 6 inch corner mount flushbolt with a rounded end and the 3999SE is the 6 inch corner mount square end version, so both are fixed-length corner mount devices. The Ives FB458 mortises into the door edge with a 1 inch by 6-3/4 inch by 1-1/8 inch body and runs a separate rod out to the bolt tip in 12 inch, 24 inch, or 48 inch lengths. Swapping between them means a different door prep, not just a different part number.
14) What finishes does the Ives FB458 flush bolt come in, and can I match the hardware already on my other doors?
Ten finishes: 605 bright brass, 606 satin brass, 609 blackened brass, 612 satin bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome and 643E aged bronze. Every one of those is offered in all three rod lengths, so you are not forced off a finish because you need a long rod at the head. If the rest of the building is standard commercial hardware, 626 satin chrome is the usual match.
15) What is the Ives FB458 flush bolt made of, and will it stand up to a busy corridor?
Brass substrate, rated commercial rather than residential, and listed to ANSI/BHMA A156.16 under function L04261. The wear point on a flush bolt is usually the bolt tip working itself out of alignment; here the tip is flat sided and rides in a guide so it cannot rotate, and the 7/8 inch of vertical adjustment gives you room to bring it back onto the hole if the frame moves.
16) How does the Ives FB458 compare with the Delaney mortise flush bolts for a double door?
The Delaney 4101 is a 7 inch slide type mortise flush bolt and the Delaney 4363 is a 7 inch mortise extension flush bolt, both mortised into the door edge like the Ives FB458. The FB458 differs in how it is operated and where it is aimed: it uses a lever, up to retract and down to project, a flat-sided bolt tip and special guide that keep the bolt from rotating, and a round bolt head suited to a punched hole in a metal frame. It is specified as commercial and carries ANSI A156.16, L04261.
How fast can I get the Ives FB458-12 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 Ives FB458-12 US26D come with a warranty?
Absolutely. The Ives FB458-12 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 Ives FB458-12 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
Why buy the Ives FB458-12 US26D 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.

Product Reviews

  • 5
    Great replacement

    Posted by Peter Finegan on Aug 13th 2024

    This was at a great price and the color matched exactly. It fit in the door opening without any modifications.

  • 5
    A Handy Door Flush Bolt

    Posted by Jackson on Sep 15th 2023

    I recently bought the Ives FB458 Top or Bottom Manual Flush Bolt from zensupply.com. It's easy to install and works like a charm to secure my doors. The only drawback is that it could have clearer installation instructions. Overall, it's a handy addition to enhance door security.

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