ABH AE Armature Extension Zinc...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$35.44
ABH AE Armature Extension Zinc Plated with Multiple Length Options

ABH AE Armature Extension Zinc Plated with Multiple Length Options

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Model: ABH-20100-ZP

In Stock (leaves warehouse same day if ordered before 3pm ET)

$35.44
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ABH Armature Extension Zinc Plated with Multiple Length Options

Professional Electromagnetic Door Hardware Extension Component

The ABH Armature Extension provides precise spacing solutions for electromagnetic door hardware installations with zinc plated finish for corrosion resistance. Available in seven extension lengths from 3/8" to 6" to accommodate various door and frame configurations. These professional-grade extensions ensure proper armature alignment and optimal magnetic holding force in commercial electromagnetic door applications.

Professional Features & Benefits

  • Multiple Extension Lengths: Seven available sizes including 3/8", 1/2", 3/4", 1", 2", 4", and 6" extensions for precise installation requirements.
  • Zinc Plated Finish: Corrosion-resistant coating provides long-term durability in commercial door hardware applications.
  • Electromagnetic Compatibility: Specifically designed for use with electromagnetic door armatures to maintain proper magnetic circuit performance.
  • Precision Engineering: Manufactured to exact tolerances for reliable fit and consistent magnetic holding force across all extension lengths.
  • Commercial-Grade Construction: Built for demanding commercial applications where reliable electromagnetic door control is essential.
  • BAA Qualified: Meets Buy American Act requirements for government and institutional projects requiring domestic sourcing compliance.
  • Complete Part Number System: Individual part numbers (20038, 20050, 20075, 20100, 20200, 20400, 20600) allow precise ordering for specific extension requirements.

Technical Specifications

  • BAA Qualified: Yes
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Keyed: N/A
  • Keyed Function: N/A
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Parts and Accessories
  • Product Group: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Parts and Accessories
  • Subcategory: Door Armatures & Extensions

Professional Applications

  • Commercial Building Access Control Systems
  • Educational Facility Security Hardware
  • Healthcare Institution Door Control
  • Government and Municipal Buildings
  • Industrial Facility Access Points
  • Multi-Tenant Residential Properties
  • Retail Security System Integration

Why Choose ABH Quality?

ABH Armature Extensions deliver professional-grade reliability with zinc plated construction for long-term corrosion resistance in demanding commercial applications. BAA qualified for government projects requiring domestic sourcing compliance. Engineered for demanding commercial applications where dependable electromagnetic door control performance is essential.

Manufacturer Resources

ABH Full Line Catalog

Product Specs

Product Group:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Parts and Accessories
Subcategory:
Door Armatures & Extensions
Commercial/Residential:
Commercial
Keyed:
N/A
Keyed Function:
N/A
BAA Qualified:
Yes
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Parts and Accessories
Department:
Door Hardware

ABH ABH-20100-ZP – Frequently Asked Questions

1) What does an ABH armature extension actually do on a magnetic lock installation?
It is a spacer that moves the armature away from the door face so the armature meets the magnet squarely. On installs where the door and frame planes do not line up (deep stop, applied stop, glass frame, out-of-plane top rail), the armature sits proud of the magnet and holding force suffers. The extension takes up that gap. ABH offers it in seven lengths, 3/8, 1/2, 3/4, 1, 2, 4 and 6 inches, so you pick the one that matches the gap you measured on the opening. It is a replacement/accessory part, not a magnet or armature by itself.
2) How do I pick which length ABH armature extension I need?
Measure the gap between the mounting surface for the armature and the plane the magnet's face sits in, with the door closed, then order the extension that closes it. The seven sizes step 3/8, 1/2, 3/4 and 1 inch for typical stop and reveal offsets, then 2, 4 and 6 inches for openings where the armature has to reach well off the door face. Sizes are ordered individually by part number: 20038, 20050, 20075, 20100, 20200, 20400 and 20600 in that order.
3) Does the ABH armature extension qualify for a Buy American project?
Yes, it is BAA qualified, which is what a government, school district or municipal spec usually requires for domestic sourcing on the hardware line items. That matters on federally funded access control work where every component in the submittal has to carry the qualification, spacers included.
4) My armature and magnet are offset instead of just spaced apart. Do I need an extension or an offset bracket?
Two different problems. An extension moves the armature straight out along the magnet's axis, so it fixes a depth gap. If the armature is out of line laterally, sitting to the side of the magnet face rather than short of it, you want an offset strike instead: the Securitron AOS armature offset strikes handle that geometry. Measure which way your misalignment runs before ordering, because the wrong one leaves the same weak hold you started with.
5) Is there a 1/2 inch armature spacer for a maglock, and can I get a longer one if the offset is bigger?
Yes, 1/2 inch is one of the seven ABH extension lengths, and if the offset is larger the same part runs up through 3/4, 1, 2, 4 and 6 inches. That top of the range covers deep-recessed frames and header conditions where a short spacer will not bridge the distance. Each length is a separate order line, so buy the exact size rather than stacking two shorter ones.
6) Does the ABH armature extension come with the armature or the magnet?
Neither. It is the spacer alone, sold as a replacement part in a single length per order line. The armature plate, the electromagnet, the sex bolt and any mounting hardware come from your maglock supplier. Order the magnet and armature separately and add the extension that matches your measured gap.
7) Can I use an armature extension on a glass door maglock?
Yes, where the glass door's top rail or header bracket leaves the armature short of the magnet face, an extension in the matching length closes that distance. Glass front openings are one of the common places the two planes do not meet. Note this is a spacer for magnetic hardware; if you are working with a Codelocks CL4000 or CL4500 glass door lock instead, the part that mates with those is the CL4000 glass door strike box, which is a mechanical strike and not interchangeable with an armature spacer.
8) I need to standardize armature spacers across a building with different frame depths. Can I do that with one part number?
Not with one number, but with one family. The same ABH extension covers 3/8 through 6 inches across seven sizes, so a facility with mixed frame depths can hold a single line item family and stock the two or three lengths that recur on its openings. Same finish and same construction throughout, which keeps the submittal and the maintenance stock simple even when the openings are not uniform.
9) Will a zinc plated armature extension hold up in a stairwell or exterior vestibule door?
The zinc plating is a corrosion-resistant coating and the part is rated for commercial use, so interior and protected-vestibule openings are its home ground. It is a plated steel spacer, not stainless, so a fully weather-exposed exterior opening with driving rain is asking more of the finish than the plating is meant for.
10) Is the armature extension keyed or does it need any keying specified when I order?
No keying is involved. It is a mechanical spacer for electromagnetic hardware, so there is no cylinder, no keyway and no function code to specify. The only thing you choose is the length. Locksmiths ordering it alongside a keyed opening should keep it off the keying schedule entirely.
How fast can I get the ABH ABH-20100-ZP 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 ABH ABH-20100-ZP come with a warranty?
Absolutely. The ABH ABH-20100-ZP 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 ABH-20100-ZP?
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 ABH ABH-20100-ZP 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.
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