Don-Jo 1638 Dutch Door Bolt, 2...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$259.36
$197.18
Don-Jo 1638 Dutch Door Bolt, 24" x 1-5/8" Brass Surface Bolt with Rim, Mortise & T-Strikes

Don-Jo 1638 Dutch Door Bolt, 24" x 1-5/8" Brass Surface Bolt with Rim, Mortise & T-Strikes

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Model: 1638-626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$259.36
$197.18
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Don-Jo 1638 Dutch Door Bolt — 24" x 1-5/8" Brass Surface Bolt with Rim, Mortise & T-Strikes

The Don-Jo 1638 Dutch Door Bolt is a commercial-grade surface bolt engineered for reliable dutch door applications. Constructed from solid brass and measuring 24" in length by 1-5/8" in width, this bolt features a 1" diameter knob for positive, comfortable operation. Furnished complete with rim, mortise, and T-strikes, the 1638 delivers a ready-to-install solution across a wide range of commercial door configurations. Available in six finishes — 605, 613, 619, 620, 625, and 626 — to coordinate with existing door hardware.

Key Features

  • Precise Dimensions: 24" length by 1-5/8" width provides a full-length surface bolt profile suited for standard dutch door applications.
  • Solid Brass Construction: Manufactured from brass for lasting durability, corrosion resistance, and a refined appearance in commercial environments.
  • 1" Diameter Knob: Ergonomic 1" dia. knob ensures positive grip and smooth bolt operation for frequent daily use.
  • Complete Strike Package: Furnished with rim, mortise, and T-strikes, providing installation flexibility across multiple door and frame configurations without additional hardware purchases.
  • Multiple Finish Options: Available in finishes 605, 613, 619, 620, 625, and 626 to match or complement existing commercial door hardware selections.
  • Commercial-Grade Application: Classified as a commercial product within the Door Trim and Accessories category, designed to meet the demands of high-use commercial settings.
  • Convenient Shelf Pack: Sold in shelf packs of 10, making the 1638 an efficient choice for contractors and distributors managing multi-door projects.

Technical Specifications

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

Typical Applications

  • Commercial Office Buildings with Dutch Door Configurations
  • Educational Facilities and School Classrooms
  • Healthcare Institutions and Medical Office Suites
  • Retail Establishments and Service Counters
  • Government and Municipal Buildings
  • Multi-Tenant Residential and Mixed-Use Properties
  • Industrial and Warehouse Facilities

Why Don-Jo 1638?

Don-Jo 1638 Dutch Door Bolts deliver professional-grade performance through solid brass construction and a comprehensive strike package — rim, mortise, and T-strikes included — eliminating the need for separate hardware sourcing. Engineered for commercial applications where consistent, dependable bolt operation is essential, the 1638 is a trusted choice for contractors and facility managers seeking quality door trim and accessory solutions.

Manufacturer Resources

DON-JO Bolts & Latches

Product Specs

Product Group:
Door Trim and Accessories
Subcategory:
Flush Bolts
Product Subgroup:
Surface Bolts
Product Type:
Dutch Door Bolts
Commercial/Residential:
Commercial
Product Model:
1638
Product Category:
Door Trim and Accessories
Product Substrate:
Brass
Department:
Door Hardware

Don-Jo 1638-626 – Frequently Asked Questions

1) What is a dutch door bolt and why would I use the Don-Jo 1638 instead of a regular surface bolt?
A dutch door bolt joins the upper and lower leaves of a split (dutch) door so the two halves swing as one when you want them locked together, then releases so the top half can open independently. The Don-Jo 1638 is a 24 inch long surface bolt built for that job, mounted on the face of the door rather than mortised into the edge. A short throw surface bolt only secures a door to a frame; the long 24 inch body here is what lets it span the gap between the two leaves.
2) What strikes come with the Don-Jo 1638, or do I need to buy them separately?
Three strikes ship with it: rim, mortise, and T-strike. That covers the common frame and leaf conditions, so you pick the one that matches the opening and set the other two aside. No separate strike purchase needed.
3) What is the difference between the Don-Jo 1638 dutch door bolt and the Emtek 8516?
Both are dutch door bolts, but they are built for different door proportions. The Don-Jo 1638 is a 24 inch long by 1-5/8 inch wide brass surface bolt with a 1 inch diameter knob, supplied with rim, mortise and T-strikes so it can be set up for several door and frame conditions. The Emtek 8516 is a 4 inch dutch door bolt. If you are joining the two leaves of a dutch door and want a full length bolt face spanning well above and below the meeting rail, the 24 inch 1638 is the one sized for that; the 4 inch Emtek is a short-body bolt for a compact application at the meeting rail.
4) I need a dutch door bolt but 24 inches is far too long for my door - what else is there?
The Don-Jo 1638 is a 24 inch long bolt, which is intended for a full-height run on the door face. Where that length will not fit - a short leaf, a glazed panel, or a rail that leaves little flat surface - the Emtek 8516 is a 4 inch dutch door bolt that does the same job of locking the two leaves together in a much shorter body.
5) What size is the Don-Jo 1638 dutch door bolt and how big is the knob?
The bolt body measures 24 inches by 1-5/8 inches, with a 1 inch diameter knob. That width matters more than people expect on a dutch door: you need 1-5/8 inches of flat, unobstructed face on both leaves in line with each other for the plate to sit flat.
6) Is the Don-Jo 1638 solid brass or plated steel?
Solid brass. That is the substrate under all six finishes, which is why it holds up in exterior-facing and humid service areas where a plated steel bolt tends to rust at the throw.
7) Which finishes does the Don-Jo 1638 come in so I can match the rest of my door hardware?
Six, and they are the standard BHMA numbers you will already have on the building: 605 polished brass, 613 oil rubbed bronze, 619 satin nickel, 620 antique nickel, 625 polished chrome, and 626 satin chrome. If your levers and hinges are 626 satin chrome, which is the most common commercial spec, order the 626 and it will read as a matched set.
8) How many Don-Jo 1638 bolts come in a pack?
They are packed in shelf packs of 10. Worth knowing before you order for a single opening, and useful if you are doing a run of dutch doors across a school or office floor.
9) Does the Don-Jo 1638 need to be handed or does it work on either side?
It is a surface-mounted bolt, so there is no handing to specify. You mount it on whichever face of the door you want it operated from and choose the strike that matches the frame or leaf condition. That also means the same part number works across a mixed set of dutch doors in one building.
10) If I order a dutch door bolt, do I have to buy the strikes separately?
With the Don-Jo 1638 you do not - it is furnished with rim, mortise and T-strikes in the box, so one order covers surface-applied and mortised frame conditions without a second line item. The Emtek 8516 is also a dutch door bolt, but at 4 inches it is a different size class of product; where you need the strike options bundled and a brass body, the 1638 is the one specified that way.
11) Is a surface bolt the same thing as a flush bolt for a dutch door?
They are related but not interchangeable at install. The Don-Jo 1638 is a surface bolt - the 24 inch brass body mounts on the face of the door, so there is no routing of the door edge, and it is supplied with rim, mortise and T-strikes to suit the frame side. A flush bolt is morticed into the door so the face sits flush, which means door prep. If your dutch door is already hung and you do not want to machine it, the surface-mounted 1638 is the type to specify; the Emtek 8516 is likewise a dutch door bolt if you need a far shorter 4 inch body.
12) Which dutch door bolt should I standardize on across a commercial building?
The Don-Jo 1638 is classified as a commercial product and comes in six finishes - 605 polished brass, 613 oil rubbed bronze, 619 satin nickel, 620 antique nickel, 625 polished chrome and 626 satin chrome - so one model number can be matched to the existing lever and hinge finishes on different floors or tenant suites. The Emtek 8516 is an alternative dutch door bolt where a 4 inch body is the right size for a particular opening.
13) Is the Don-Jo 1638 rated for commercial use or is it a residential bolt?
It is classified commercial, and it is the kind of part that goes on classroom doors, reception and service counters, medical office suites, and municipal buildings where the top half of the door opens all day and the bolt gets cycled constantly.
How fast can I get the Don-Jo 1638-626 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 Don-Jo 1638-626 come with a warranty?
Absolutely. The Don-Jo 1638-626 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 1638-626?
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 Don-Jo 1638-626 from ZenSupply?
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