Don-Jo 1579 Surface Bolt, 8" x...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$128.90
$104.50
Don-Jo 1579 Surface Bolt, 8" x 1", Satin Chrome Finish with Key Lock and Concealed Screw Mount

Don-Jo 1579 Surface Bolt, 8" x 1", Satin Chrome Finish with Key Lock and Concealed Screw Mount

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Model: 1579-626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$128.90
$104.50
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Don-Jo 1579 Surface Bolt, 8" x 1", Satin Chrome Finish with Key Lock and Concealed Screw Mount

The Don-Jo 1579 is a commercial-grade steel surface bolt measuring 8" in length and 1" in width, finished in Satin Chrome (626) for a clean, professional appearance. Designed for reliable door security, this surface bolt features a key-locking mechanism that secures the bolt in both the open and closed positions, providing added control and tamper resistance. The concealed screw mount design delivers a streamlined installation with a neat, finished look suited for commercial door applications.

Key Features

  • Precise Dimensions: Measures 8" in length and 1" in width, providing a robust and proportional fit for commercial door applications.
  • Key-Locking Mechanism: Locks open or closed with a key, offering enhanced security and control over door bolt positioning.
  • Concealed Screw Mount: Features a concealed screw mounting design for a clean, professional finish and tamper-resistant installation.
  • Durable Steel Construction: Manufactured from steel for long-lasting performance in demanding commercial environments.
  • Satin Chrome Finish (626): The 626 Satin Chrome finish provides a refined aesthetic that complements a wide range of commercial door hardware.
  • Commercial-Grade Quality: Designed and rated for commercial use, making it suitable for high-traffic and security-sensitive applications.
  • ANSI Compliance: Meets ANSI standard L84161 for surface bolt performance and reliability.

Certifications & Compliance

  • ANSI L84161 Compliant
  • Commercial Grade

Technical Specifications

  • Product Group: Door Trim and Accessories
  • Subcategory: Flush Bolts
  • Product Subgroup: Surface Bolts
  • Product Type: Surface 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 Don-Jo 1579?

Don-Jo surface bolt products are engineered to deliver professional-grade reliability through durable steel construction and precision finishing. The 1579 model meets ANSI L84161 standards and incorporates a key-locking feature and concealed screw mount, making it a dependable choice for commercial door security applications where controlled access and a clean installation are essential.

Manufacturer Resources

DON-JO Bolts & Latches

Product Specs

Product Group:
Door Trim and Accessories
Subcategory:
Flush Bolts
Product Subgroup:
Surface Bolts
Product Type:
Surface Bolts
Commercial/Residential:
Commercial
ANSI/BHMA:
L84161
Product Model:
1579
Product Category:
Door Trim and Accessories
Product Substrate:
Steel
Department:
Door Hardware

Don-Jo 1579-626 – Frequently Asked Questions

1) Will the Don-Jo 1579 surface bolt lock in the open position, or only when thrown?
Both. The 1579 is a key-locking surface bolt, and the key secures the bar in the open position as well as the closed one. That matters on an inactive leaf you want held retracted during business hours: nobody can casually throw the bolt into the strike and take the leaf out of service, and once it is thrown at close-up it cannot be retracted without the key. A plain spring or slide bolt gives you neither.
2) How long is the Don-Jo 1579 surface bolt, and will 8 inches reach past my astragal or stop?
The 1579 measures 8 inches long by 1 inch wide. That is the mounting plate and bar length on the face of the door, not the throw, so measure the flat vertical run you have available at the top or bottom of the leaf and make sure 8 inches of clear face is there past any astragal, hinge, or closer arm. On a narrow stile or a leaf crowded with other hardware, the shorter Emtek 8511 solid brass surface bolt at 6 inches drops into less space; if you want more reach, the Ives SB360 heavy-duty steel bolt comes in a 12 inch length.
3) Do I need to mortise the door for the Don-Jo 1579, or does it mount on the surface?
Surface mount, no mortising. The 1579 fastens to the face of the door and uses a concealed screw mount, so the fasteners are hidden once it is assembled, which both cleans up the look and keeps the screws out of reach from the secure side. You still need to prep the strike at the head or the floor for the bolt to drop into. This is the reason surface bolts get chosen over flush bolts on retrofit work: no router, no cutting into the door edge.
4) What surface bolt should I use on a fire rated door instead of the Don-Jo 1579?
For a fire rated opening, specify a bolt that carries the rating in its own listing. The Ives SB1630 is a heavy duty steel locking surface bolt with keyed security and a 3-hour UL listing. The Ives SB1600 is a heavy duty steel surface bolt with a 3-1/2 inch throw and is fire rated, which suits a deeper strike condition. The Ives SB1640 is fire rated with brass construction and a 1 inch throw. The Don-Jo 1579 is a commercial steel surface bolt meeting ANSI L84161, key-locking open or closed.
5) What does ANSI L84161 mean on a surface bolt like the Don-Jo 1579?
L84161 is the ANSI/BHMA function designation the 1579 is built to, the standard reference a spec writer or institutional buyer puts on a hardware schedule for this class of auxiliary door bolt. If your submittal calls out L84161, the 1579 answers it directly. It is a function and performance designation, not a fire label, so it does not substitute for a UL listing on a labeled opening.
6) Should I use a surface bolt or a flush bolt on the inactive leaf of a pair of doors?
A surface bolt like the 1579 mounts to the door face, so it installs on an existing pair with no routing of the door edge, and the key-locking bar means you can control who throws or retracts it. A flush bolt is mortised into the edge of the leaf and disappears from view, which is what you want when appearance matters or when the door face has to stay clear. For retrofit work on doors already hung, the surface bolt is almost always the faster call. On a labeled opening the choice narrows further, because the bolt has to carry a fire rating.
7) Will the Don-Jo 1579 satin chrome match the rest of my building's door hardware?
Satin chrome, 626, is the finish, and it is the single option the 1579 is built in. 626 is the standard commercial satin chrome that lines up with the vast majority of commercial locksets, exit devices, and closers in office, school, and healthcare buildings, so on a fleet of openings already running 626 it will match. If the property is on brass or bronze trim instead, a steel bolt in 626 will read wrong next to it, and a solid brass bolt such as the Delaney solid brass surface bolt or the Emtek 8511 is the better visual match.
8) What is the closest alternative to the Don-Jo 1579 keyed surface bolt?
The Ives SB1630 is the nearest match: heavy duty steel, keyed security, 1 inch throw, and it adds a 3-hour UL Listed fire rating. If you want the bolt to lock automatically when thrown rather than by key, the ABH HD1805 is a heavy duty surface bolt with an auto-locking 3/4 inch stainless steel bar. Where you only need a plain bolt with no keying at all, the Trimco 4800 Series covers that ground. The 1579 stays the pick when the requirement is specifically a key that holds the bar open as well as closed.
9) Do I need a strike or anything else to install a Don-Jo 1579 surface bolt?
The bolt has to land in something. Mounted at the head you need a strike in the frame or the door above; mounted at the sill you need a floor strike or a drilled hole in the threshold, and on a concrete floor that means a dust-proof strike set into the slab. The 1579 itself mounts to the door face with concealed screws, so the door-side work is straightforward. Plan the strike as a separate line on the order and confirm which end of the leaf you are bolting before you prep anything.
10) Is a Delaney solid brass surface bolt an equivalent replacement for the Don-Jo 1579?
No, they solve different problems. The Delaney Solid Brass Surface Bolt and the Delaney Decorative Solid Brass Surface Bolt are brass slide bolts intended for appearance-driven openings. The Don-Jo 1579 is a steel commercial surface bolt that locks open or closed with a key and mounts with concealed screws, and it meets ANSI L84161. If the door needs the bolt held in position by key rather than by hand, the Delaney bolts will not do that job.
11) I need a longer surface bolt than the Don-Jo 1579 8 inch - what are my options?
The Ives SB360 in the 12 inch length is a heavy-duty steel surface bolt with a 1-1/4 inch throw and is fire rated, which covers openings where the 8 inch body of the Don-Jo 1579 does not reach far enough up the door or where you want more bolt engagement. The Emtek 8511 runs the other direction at 6 inches in solid brass. Confirm the throw you need at the strike before choosing on length alone.
12) What is a simpler surface bolt to use where a key lock is not needed?
If nobody needs to key the bolt in position, a plain slide bolt is less hardware to maintain. The Emtek 8511 is a 6 inch solid brass surface bolt, and the Delaney Solid Brass Surface Bolt covers the same idea. The Trimco 4800 Series is the commercial-side option. The Don-Jo 1579 adds a key that locks the bolt both open and closed, which is what you are giving up.
13) What surface bolt locks itself instead of needing a key like the Don-Jo 1579?
The ABH HD1805 is a heavy duty surface bolt with an auto-locking 3/4 inch stainless steel bar, so the bolt secures its own position without a key being turned. The Don-Jo 1579 uses a key to lock the bolt open or closed, which gives a facility control over who can move it. Choose by whether you want staff to operate the bolt freely or only keyholders.
14) Is a steel surface bolt tough enough for a school or hospital corridor door?
Steel is the substrate and the 1579 is built for commercial duty, which is the right call for schools, healthcare, retail, warehouses, and multi-tenant residential where the bolt gets handled hard and a cast decorative bolt would not last. Solid brass bolts, like the Delaney decorative surface bolt, are chosen for appearance on residential and light commercial doors rather than for abuse resistance.
15) Will a brass surface bolt hold up the same as the steel Don-Jo 1579 in a high traffic building?
They are different materials for different jobs. The Don-Jo 1579 is steel, built for commercial use, and meets ANSI L84161. The Ives SB1640 is a fire rated brass surface bolt with a 1 inch throw if you need brass in a rated opening, while the Emtek 8511 and the Delaney Decorative Solid Brass Surface Bolt are solid brass for openings where the finish is doing visual work. Match the material to the abuse the door takes and to the rest of the trim on the opening.
How fast can I get the Don-Jo 1579-626 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 Don-Jo 1579-626 come with a warranty?
Absolutely. The Don-Jo 1579-626 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 Don-Jo 1579-626?
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