ABH 1860P/1862P Automatic Flus...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$92.00
$89.32
ABH 1860P/1862P Automatic Flush Bolt Pair - Fire Rated 3-Hour with Thermal Lock

ABH 1860P/1862P Automatic Flush Bolt Pair - Fire Rated 3-Hour with Thermal Lock

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Model: 1860P US32D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$92.00
$89.32
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ABH 1860P/1862P Automatic Flush Bolt Pair - Fire Rated 3-Hour with Thermal Lock

Professional Fire-Rated Door Hardware Solution

The ABH 1860P/1862P Automatic Flush Bolt Pair delivers professional-grade fire protection for metal doors rated up to 3 hours and door sizes up to 4'w x 8'h. Constructed with brass and stainless steel materials, this UL Listed flush bolt system features fully automatic operation where opening the active door retracts both top and bottom bolts. The thermal lock feature automatically secures the inactive door under high heat conditions, providing critical fire safety protection.

Professional Features & Benefits

  • Fire Rating Compliance: UL Listed for metal doors fire rated up to and including 3 hours for maximum safety compliance.
  • Door Size Compatibility: Designed for doors up to 4'w x 8'h with versatile installation options.
  • Thermal Lock Protection: Automatically locks the inactive door under high heat conditions due to fire for enhanced safety.
  • Fully Automatic Operation: Opening active door retracts top and bottom bolts with low closing force for smooth operation.
  • Adjustable Bolt Heads: Bolt head rods are adjustable up to 1-1/2" for precise alignment and installation flexibility.
  • Override Protection: Override feature prevents damage to doors or bolts if bolt heads are blocked from entering strikes.
  • Non-Handed Design: Universal configuration simplifies inventory and installation requirements.
  • Heavy-Duty Construction: Brass and stainless steel materials provide exceptional durability for commercial applications.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Flush Bolts
  • Product Type: Flush Bolts
  • Series: 1860P Series
  • Subcategory: Surface Bolts

Professional Applications

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

Why Choose ABH Quality?

ABH flush bolt systems deliver professional-grade reliability with brass and stainless steel construction rated for 3-hour fire protection and UL Listed certification. Engineered for demanding commercial applications where dependable fire safety performance is essential, with an average weight of 2.5 lbs per unit ensuring robust installation.

Manufacturer Resources

ABH Full Line Catalog

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Flush Bolts
Product Type:
Flush Bolts
Subcategory:
Surface Bolts
Series:
1860P Series
Product Category:
Door Trim and Accessories
Department:
Door Hardware

ABH 1860P US32D – Frequently Asked Questions

1) Do I have to specify handing when ordering ABH 1860P flush bolts?
No handing to call out. The 1860P/1862P set is non-handed, so the same pair goes on a left or right hand inactive leaf. What you do have to specify is door type (metal or wood) and finish, which is satin stainless steel.
2) Do automatic flush bolts release on their own, or does someone have to bend down and retract the bottom bolt?
Fully automatic. Opening the active leaf retracts both the top and bottom bolts on the inactive leaf at once, so nobody has to stoop to the threshold or reach the head to free the second door. Manual flush bolts, like the Ives FB358, are operated by hand at each bolt instead. Automatic is what you want where the second leaf gets opened routinely; manual suits a leaf that stays fixed most of the year.
3) What does the thermal lock on the ABH 1862P actually do in a fire?
Under high heat from a fire, the thermal lock automatically secures the inactive leaf, so the second door stays bolted even if the bolts were retracted when the fire started. That is what lets an automatic bolt be used on a fire door assembly rather than only a manual one. It is UL Listed for metal doors rated up to and including 3 hours.
4) Can I use ABH 1860P automatic flush bolts on a pair of doors with no center mullion?
Yes, that is the case they are built for. The bolts latch the inactive leaf into the frame head and the threshold, so the inactive door becomes the strike for the active leaf and no removable mullion is needed. On a 3-hour rated metal pair, the thermal lock is what keeps that arrangement acceptable on a fire assembly.
5) What is a comparable automatic flush bolt for a pair of wood doors with a fire rating?
The ABH 1860P/1862P automatic flush bolt pair is offered in a wood door version alongside the metal door version, and is described as UL Listed for metal doors fire rated up to and including 3 hours with a thermal lock that secures the inactive door under high heat. The closest cross-brand equivalent is the Ives FB41 automatic flush bolt set for wood doors, which uses a 3/4 inch throw and carries a 90 minute fire rating. Both are automatic sets, meaning opening the active leaf retracts the bolts; the difference to check against the opening is the fire rating the door assembly requires, since the ABH pair is rated to 3 hours and the FB41 to 90 minutes.
6) What should I use instead of an automatic flush bolt when only the top of the inactive leaf needs to latch?
The ABH 1860P/1862P is sold as a pair covering both the top and bottom of the inactive leaf, with fully automatic retraction of both bolts when the active door opens. When the opening only calls for the top position, the Ives FB42 is a top automatic flush bolt for wood doors with an auxiliary fire latch and a fire rating. That gives automatic top-bolt operation with a fire latch rather than a two-position pair, so confirm with the door manufacturer's listing what the assembly requires at the bottom of the leaf before ordering a single top bolt.
7) Is a manual flush bolt an alternative to the ABH 1860P/1862P?
They operate differently. The 1860P/1862P is fully automatic: opening the active door retracts the top and bottom bolts, so the inactive leaf releases without the user touching the bolts. A manual flush bolt has to be thrown and withdrawn by hand at each bolt. Fire rated manual options include the Ives FB358 with a 3/4 inch throw and 1/2 inch bolt diameter, and the Ives FB457 with a 12 inch rod length for metal doors. Manual bolts are typically used where the inactive leaf stays fixed; if the opening is an egress path where the inactive leaf must release automatically, that is what the automatic ABH pair is built to do.
8) How much adjustment is there in ABH 1860P flush bolts if my strikes are slightly out of alignment?
The bolt head rods adjust up to 1-1/2 inches, which covers the usual variation between a frame head prep and a threshold strike in existing openings. There is also an override built in, so if a bolt head is blocked from entering its strike the mechanism gives rather than tearing up the door or bending the bolt.
9) What is the difference between the ABH 1860P automatic flush bolt and a cylinder-operated flush bolt?
Control. The 1860P/1862P works off door movement alone, no key, so opening the active leaf frees the inactive one. A cylinder-operated flushbolt such as the Adams Rite 1870 Series adds key control at the bolt, so the inactive leaf can only be released by someone with the key. Pick the ABH set where the second leaf gets used for moving traffic or equipment; pick key control where you want that leaf positively held shut against staff.
10) Is the ABH 1860P sold as one bolt or as a top and bottom set?
It ships as a pair, the 1860P and 1862P together, covering the top and the bottom of the inactive leaf. You are not buying a head bolt and a threshold bolt separately. What is not included is the frame and threshold strike prep, which has to exist or be cut in the opening.
11) Are there cheaper flush bolt options if my paired doors are not fire rated?
Plenty. On a non-rated opening a manual flush bolt does the job: the Trimco 3999 is a 6 inch corner mount with a rounded end, the 3999SE the square end version, and the Orca 86SQ is a 6 inch bolt with radius corners. Those are hand operated at each bolt. Step up to the ABH 1860P/1862P when the assembly is rated and you need automatic retraction plus the thermal lock.
12) What is the difference between the ABH 1860P/1862P and an Adams Rite cylinder-operated flushbolt?
The ABH 1860P/1862P retracts its bolts automatically when the active leaf is opened, and includes a thermal lock that secures the inactive door under high heat. The Adams Rite 1870 is a cylinder-operated flushbolt with key control, and the Adams Rite 1877 is a cylinder-operated flushbolt for paired wood doors. Cylinder operation means the inactive leaf is released with a key rather than by the motion of the active door, which suits an opening where you want the inactive leaf secured against being released by anyone who opens the pair. Choose on how the inactive leaf is meant to be controlled: automatically by the active door, or by key.
13) Which two-point flush bolt releases automatically like the ABH 1860P/1862P?
The ABH 1860P/1862P pair releases both bolts when the active door is opened, and its bolt head rods adjust up to 1-1/2 inches for alignment. On the Adams Rite side, the MS2180 is an auto-release two-point flushbolt with a Smartlock mechanism, which is the closest in operating behavior. The Adams Rite MS1880/MS1881 is also a two-point flushbolt but uses an interlock mechanism rather than auto-release. If the opening needs the inactive leaf to free itself when the active leaf swings, the auto-release designs are the ones to compare.
14) Are 6 inch flush bolts a substitute for the ABH 1860P/1862P pair?
They are a different type of part. The 1860P/1862P is an automatic pair for metal or wood doors, UL Listed for metal doors fire rated up to and including 3 hours, with an override feature that prevents damage if a bolt head is blocked from entering its strike. Short edge-mounted bolts such as the Delaney 6 inch square end solid brass flush bolt, the Orca 6 inch flush bolt with radius corners, and the Trimco 3999 and 3999SE 6 inch corner mount flushbolts in rounded and square end are hand-operated bolts of a fixed short length. They are commonly specified on residential and light commercial door pairs; for an assembly where the bolts must retract with the active leaf, the automatic ABH pair is the matching function.
15) What is a simpler flush bolt option for a non-rated interior door pair?
Where the pair is not part of a fire rated assembly and the inactive leaf can be set by hand, single mortise-type bolts cover the job: the Delaney 7 inch slide type mortise in flush bolt, the Delaney 7 inch mortise extension flush bolt, and the International Door Closers FB-1202, which uses a positive U joint actuator with a 5/8 inch throw, 1/8 inch offset, 7/8 inch backset and a square end, supplied with a guide. These mount into the edge of the leaf and are operated individually. The ABH 1860P/1862P is the choice when the opening calls for automatic retraction of both bolts and the thermal lock that secures the inactive door under high heat.
16) What are ABH 1860P flush bolts made of, and will they hold up in a high traffic building?
Brass and stainless steel throughout, finished in satin stainless steel. That combination is what carries the set through school corridors, hospital cross-corridor pairs, and warehouse openings where the inactive leaf gets swung far more often than the drawings assumed. Closing force stays low, which matters when a closer has to reseat both leaves every cycle.
17) Can I use an Emtek flush bolt where an ABH 1860P/1862P is specified?
Emtek flush bolts are manually operated edge bolts commonly selected for appearance on residential and light commercial door pairs. The ABH 1860P/1862P is a non-handed automatic pair in brass and stainless steel, UL Listed for metal doors fire rated up to and including 3 hours, with a thermal lock that secures the inactive door under high heat. Where the specification calls out an automatic fire rated flush bolt for the inactive leaf, a manual decorative bolt does not fill that line; where the pair is a non-rated opening chosen on finish, the Emtek is the type being asked for.
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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 1860P US32D come with a warranty?
Absolutely. The ABH 1860P US32D 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 1860P US32D?
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