Cal-Royal AUTOFL Automatic Flu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$145.53
Cal-Royal Cal-Royal AUTOFL Door Automatic Flush Bolts AUTOFL

Cal-Royal AUTOFL Automatic Flush Bolts with Steel Construction

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Model: AUTOFLM1-US26
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$145.53
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Cal-Royal AUTOFL Automatic Flush Bolts with Steel Construction

The Cal-Royal AUTOFL Automatic Flush Bolts provide reliable top and bottom door locking for pairs of doors in commercial applications. Available in AUTOFLM1 and AUTOFLW22 configurations, each set includes 2 Auto Flush Bolts (Top and Bottom) constructed of durable Steel and rated BHMA 4.4 Type 25. The AUTOFLM1 features a Face Plate measuring 1" x 6 3/4", while the AUTOFLW22 features a larger Face Plate measuring 1" x 8 1/2", allowing installers to select the correct fit for the application at hand.

Key Features

  • Face Plate Options: AUTOFLM1 Face Plate measures 1" x 6 3/4" and AUTOFLW22 Face Plate measures 1" x 8 1/2", providing options for different door and frame preparations.
  • Bolt Head Dimension: 1/2" Square bolt head on both configurations for secure, consistent engagement.
  • Bolt Throw: 3/4" Bolt Throw on both AUTOFLM1 and AUTOFLW22 for dependable door securement.
  • Fastener Specifications: AUTOFLM1 uses #8 x 1" fasteners while AUTOFLW22 uses #8 x 3/4" fasteners for proper mounting to the door.
  • Heavy-Duty Construction: Steel material construction provides long-lasting durability suited for repeated commercial use.
  • Complete Top and Bottom Set: Each configuration includes 2 Auto Flush Bolts (Top and Bottom) for full pair-door coverage in a single package.
  • Automatic Operation: Automatic flush bolt function streamlines securing inactive leaf doors without requiring manual bolt actuation at both top and bottom.

Certifications & Compliance

  • BHMA 4.4 Type 25

Technical Specifications

  • Product Group: Door Trim and Accessories
  • Product Subgroup: Flush Bolts
  • Product Type: Flush Bolts
  • Subcategory: Flush Bolts
  • Commercial/Residential: Commercial
  • Product Category: Door Trim and Accessories
  • Department: Door Hardware

Typical Applications

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

Why Cal-Royal AUTOFL?

Cal-Royal AUTOFL Automatic Flush Bolts deliver dependable, professional-grade door securement built from durable Steel and rated to BHMA 4.4 Type 25 standards. With precise 1/2" Square bolt heads and consistent 3/4" Bolt Throw across both configurations, these flush bolts are engineered for demanding commercial door pair applications where dependable performance is essential.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Flush Bolts
Product Type:
Flush Bolts
Subcategory:
Flush Bolts
Commercial/Residential:
Commercial
Product Model:
AUTOFL
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Cal-Royal AUTOFLM1-US26 – Frequently Asked Questions

1) What is the difference between the Cal-Royal AUTOFLM1 and AUTOFLW22 automatic flush bolts?
Face plate size and fastener length are what separate them. The AUTOFLM1 has a 1 x 6-3/4 inch face plate and ships with #8 x 1 inch fasteners; the AUTOFLW22 has a 1 x 8-1/2 inch face plate and uses #8 x 3/4 inch fasteners. Everything that decides function is the same on both: steel construction, 1/2 inch square bolt head, 3/4 inch bolt throw, and two bolts (top and bottom) per set. Pick by the mortise pocket your door or frame prep will accept.
2) Do I order Cal-Royal AUTOFL flush bolts differently for wood doors than for hollow metal?
Yes, application is an ordering choice. The AUTOFL set is ordered as either Metal or Wood, so specify the door material of the inactive leaf when you order. Both application options are offered in all six finishes: US1 flat black, US3 polished brass, US4 satin brass, US10B antique bronze oiled, US26 polished chrome, and US26D satin chrome.
3) Will an automatic flush bolt work on a pair of doors with no mullion, or do I need manual bolts?
Automatic flush bolts are the right choice on a mullion-less pair where the inactive leaf has to secure itself. The AUTOFL set throws top and bottom automatically as the active leaf closes, so nobody has to reach up to the head or bend to the threshold to set the bolts. Manual flush bolts, like the ABH 1854 Series set or the Ives FB358, are the alternative when you want the inactive leaf deliberately locked down and left alone, such as a stockroom or an infrequently opened leaf. On a high-traffic opening where staff will not bother setting bolts, automatic wins.
4) Is one Cal-Royal AUTOFL package enough for a pair of doors, or do I need to buy two?
One package covers the leaf. Each AUTOFL set includes two automatic flush bolts, top and bottom, which is the full complement for one inactive leaf. Order one set per pair of doors. If you only need to replace a single bolt at the head or sill, a single like the ABH 1855S is the manual equivalent sold on its own.
5) Will a 3/4 inch throw flush bolt reach my existing strike and floor prep?
The AUTOFL bolts throw 3/4 inch with a 1/2 inch square bolt head, which is the common commercial flush bolt geometry, so an existing head strike and floor strike drilled for a 1/2 inch bolt at 3/4 inch penetration will take them. That matches the throw on several other bolts in the same class, including the Ives FB358 and the ABH 1855S, both at 3/4 inch. Where you need to look twice is a 5/8 inch throw prep, such as the International Door Closers FB-1202, because the deeper 3/4 inch bolt needs the strike pocket to be deep enough.
6) Are Cal-Royal AUTOFL automatic flush bolts fire rated for a labeled pair of doors?
The AUTOFL set is rated BHMA 4.4 Type 25 and built of steel. If your opening carries a fire label and the specification calls for a rated automatic bolt, look at the ABH 1860P/1862P automatic flush bolt pair, which we list as fire rated 3-hour with a thermal lock, or the Ives FB41 automatic flush bolt set for wood doors at 90 minutes. On a labeled pair the top bolt is usually paired with an auxiliary fire latch; the Ives FB42 top automatic bolt for wood doors is the example of that arrangement.
7) How much door edge do I need to mortise for a Cal-Royal AUTOFL flush bolt?
Prep the door edge for a 1 inch wide face plate: 6-3/4 inches long for the AUTOFLM1, 8-1/2 inches long for the AUTOFLW22. If you are cutting into an existing door that already has a flush bolt pocket, measure the old face plate first. A 6 inch plate opening, the size on bolts like the Trimco 3999SE or the Orca Hardware 86SQ, is shorter than either AUTOFL plate and will need the mortise lengthened.
8) What is the closest automatic flush bolt equivalent to the Cal-Royal AUTOFL for a pair of wood doors?
The Ives FB41 is an automatic flush bolt set for wood doors with a 3/4 inch throw, which matches the 3/4 inch bolt throw the Cal-Royal AUTOFL carries on both the AUTOFLM1 and AUTOFLW22 configurations. The FB41 also carries a 90 minute fire rating. The AUTOFL is ordered with a Wood application option in six finishes including US26D Satin Chrome and US10B Antique Bronze Oiled, so if the opening is a wood pair and the throw is what has to match, the two are the same class of part.
9) What does the BHMA 4.4 Type 25 rating on a flush bolt actually mean for a commercial opening?
Type 25 under BHMA A156.16 is the designation for an automatic flush bolt, and 4.4 is the product section for auxiliary hardware. In practical terms, when a spec or a submittal sheet calls for a Type 25 auxiliary bolt on a pair of doors, the Cal-Royal AUTOFL set answers that line. It is a commercial-duty item, steel bodied, intended for repeated use rather than residential service.
10) What finishes do Cal-Royal AUTOFL flush bolts come in so they match the rest of my door hardware?
Six finishes across the AUTOFL line: US1 flat black, US3 polished brass, US4 satin brass, US10B antique bronze oiled, US26 polished chrome, and US26D satin chrome. For a building standardized on satin chrome trim, US26D is the match; for older brass-trimmed openings, US3 or US4. All six are available in both the wood and metal door versions, so a property with a mix of hollow metal stairwell pairs and wood office pairs can keep one finish throughout.
11) Can I use a keyed or cylinder-operated flush bolt instead of an automatic one on my inactive leaf?
Not with the AUTOFL. It is an automatic bolt, meaning it sets and releases with the action of the doors, with no key control over the inactive leaf. If you need the inactive leaf locked and controlled by key, the Adams Rite 1870 Series is a cylinder-operated flushbolt with key control, and the 1877 is the cylinder-operated version for paired wood doors. Those are the ones to specify when a facility wants the second leaf held shut against staff opening it.
12) Do flush bolts on the inactive leaf mean I still need a lock on the active door?
Yes. The AUTOFL set secures only the inactive leaf, bolting it into the head and the floor so it acts as a fixed jamb. The active leaf still needs its own lockset, exit device, or latch to lock against that now-stationary edge. Budget the flush bolt set, the strikes at head and threshold, and the active leaf hardware as separate line items on the same opening.
13) Do any flush bolts release the inactive leaf automatically the way the Cal-Royal AUTOFL does, but as a two point unit?
The Adams Rite MS2180 Series is an auto-release two-point flushbolt with a Smartlock mechanism, and the Adams Rite MS1880/MS1881 is a two-point flushbolt with an interlock mechanism. Both handle top and bottom from one two-point assembly. The Cal-Royal AUTOFL supplies the same top and bottom coverage as 2 separate automatic bolts in one package, steel, with a 1/2 inch square bolt head and 3/4 inch throw. Choose by whether the door prep is set up for a two-point unit or for individual top and bottom bolts.
14) Is a 6 inch corner mount flushbolt like the Trimco 3999 the same thing as the Cal-Royal AUTOFL?
No. The Trimco 3999 is a 6 inch corner mount flushbolt with a rounded end and the Trimco 3999SE is the 6 inch corner mount square end version, both mounted at the door corner. The Cal-Royal AUTOFL is an automatic set of 2 bolts, top and bottom, with a face plate of 1 inch by 6 3/4 inches on the AUTOFLM1 or 1 inch by 8 1/2 inches on the AUTOFLW22, mortised into the edge of the inactive leaf. The prep and the face plate footprint are different, so a corner mount bolt is not a drop-in for an AUTOFL cutout.
15) What do I order if only the bottom bolt on the pair needs replacing rather than the whole Cal-Royal AUTOFL set?
The Cal-Royal AUTOFL ships as a set of 2 auto flush bolts covering top and bottom in a single package. For a single-position replacement, the ABH 1858 is a universal bottom fire bolt with manual operation, and the ABH 1855S is a manual flush bolt single for metal doors with a 3/4 inch throw. Both are ordered as one bolt rather than a pair, which is what a property manager patching one leaf across a building usually wants.
16) Is there a flush bolt with a shorter throw than the Cal-Royal AUTOFL for a shallow strike condition?
The International Door Closers FB-1202 is a flush bolt with a positive U joint actuator, a 5/8 inch throw, 1/8 inch offset with 7/8 inch backset, square end, with guide. The Cal-Royal AUTOFL carries a 3/4 inch bolt throw with a 1/2 inch square bolt head on both the AUTOFLM1 and AUTOFLW22. Where the head or sill pocket will only take 5/8 inch of bolt, the FB-1202 is the one sized for it.
17) Which flush bolt should I use on a residential-style wood pair instead of the Cal-Royal AUTOFL?
The Cal-Royal AUTOFL is a commercial flush bolt built in steel to BHMA 4.4 Type 25. For lighter wood pairs, the Delaney 4108xx is a 6 inch square end solid brass flush bolt and the Delaney 4101xx is a 7 inch slide type mortise-in flush bolt. Emtek Flush Bolts are also in the decorative wood-door group. These are manual slide or mortise bolts in brass rather than an automatic steel set, which changes both the operation and the material on the door.
18) What flush bolt handles a taller top rail or a longer rod reach than the Cal-Royal AUTOFL face plates?
The Ives FB457 is a manual flush bolt with a 12 inch rod length for metal doors and carries a fire rating. The Delaney 4363xx is a 7 inch mortise extension flush bolt. The Cal-Royal AUTOFL face plates run 1 inch by 6 3/4 inches on the AUTOFLM1 and 1 inch by 8 1/2 inches on the AUTOFLW22, so where the rail depth calls for a longer rod or extension than either face plate covers, the FB457 or the Delaney extension is the part sized for that reach.
19) I only need the top bolt with an auxiliary fire latch on a wood pair - is the Cal-Royal AUTOFL the right part?
The Cal-Royal AUTOFL is supplied as a complete top and bottom set of 2 automatic bolts. If the requirement is specifically the top position with an auxiliary fire latch on a wood pair, the Ives FB42 is a top automatic flush bolt for wood doors with an auxiliary fire latch and carries a fire rating. That covers the single top position rather than the full pair package.
20) I have a residential double door at home. Are these the right flush bolts?
The Cal-Royal AUTOFL is a commercial-duty steel automatic bolt, heavier than most homes need and prepped into the door edge. For a residential pair, a surface or mortise flush bolt in a decorative finish is the usual answer, such as the Delaney 6 inch square end solid brass flush bolt or the Emtek flush bolts.
21) Is a 6 inch radius corner flush bolt interchangeable with the Cal-Royal AUTOFL on a hollow metal pair?
The Orca Hardware 86SQ Series is a 6 inch flush bolt with radius corners, a manual bolt with a 6 inch face. The Cal-Royal AUTOFL is automatic and its face plates measure 1 inch by 6 3/4 inches on the AUTOFLM1 and 1 inch by 8 1/2 inches on the AUTOFLW22, and it is ordered with a Metal application option in finishes such as US26 Polished Chrome and US3 Polished Brass. Because the face lengths and the operation differ, the Orca bolt is a different prep and a different mode of operation, not a swap into an existing AUTOFL mortise.
How fast can I get the Cal-Royal AUTOFLM1-US26 delivered?
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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 Cal-Royal AUTOFLM1-US26 come with a warranty?
Absolutely. The Cal-Royal AUTOFLM1-US26 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 Cal-Royal AUTOFLM1-US26?
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