HES 4501-1 4500 Series 1" Lip ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$65.65

HES 4501-1 4500 Series 1" Lip Extension Stackable

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Model: 4501-1

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

$65.65
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HES 4501-1 4500 Series 1" Lip Extension Stackable

Manufacturer Resources

Product Specs

Commercial/Residential:
Commercial
Grade:
Grade 1
Series:
Electric Strike Accessories
Electronic:
Yes
Product Group:
Electronic Access Controls
Product Subgroup:
Electric Strikes Parts and Accessories
Product Type:
Parts and Accessories
Subcategory:
Electric Strike Parts and Accessories
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Product Category:
Parts and Accessories
Department:
Door Hardware

HES 4501-1 – Frequently Asked Questions

1) Will the HES 4501-1 fit a strike other than the HES 4500 Series?
No. The 4501-1 is cut for the 4500 Series strike lip and nothing else. If you're extending the lip on a different HES strike family, order the extension made for that family; a 4500 extension won't line up on it.
2) Is the HES 4501-1 lip extension rated for commercial door use?
Grade 1 and specified for commercial openings. That matters because a lip extension is the part the latch rides across every cycle, so on a high-traffic entry or a stairwell door you don't want a lighter-duty shim doing that work.
3) How is the HES 4501-1 different from surface-mount accessories like the Securitron SAM kit or Cal-Royal 8641-SM box?
Different jobs entirely. The 4501-1 corrects latch reach at an in-frame electric strike. The Securitron SAM Surface Mount Kit accessories are for mounting a maglock on the surface, and the Cal-Royal 8641-SM is a single-gang surface mount box for 8600 Series devices. If your problem is the latch missing the strike lip, only the lip extension addresses it.
4) Will a Securitron SAM Surface Mount Kit accessory work in place of the HES 4501-1 lip extension?
No. The HES 4501-1 is a 1 inch lip extension for 4500 Series electric strikes, a Grade 1 commercial installation accessory that changes how far the strike lip reaches toward the latch. The Securitron SAM Surface Mount Kit Accessories are mounting parts for surface mount hardware, and the Securitron SWB is a SAM wood bracket. Both address how a device is fastened to the opening, not the lip reach of a strike, so neither substitutes for the 4501-1.
5) If the strike opening needs a monitor or request to exit signal rather than a longer lip, what part covers that instead?
A lip extension only changes the physical reach of the strike lip; it carries no switching. For signalling, Command Access makes field installable kits: the REX-KIT-ML request to exit kit for ML1-Series mortise locks, the SCHLBMKIT-ML latchbolt monitor switch kit for Schlage L9000 mortise locks in an SPDT configuration, and the CRSREXKIT-ED request to exit kit for Cal Royal 22/98 and Sargent 80 Series with an SPDT switch. Those are the parts to specify when the requirement is a contact rather than lip geometry.
6) Do I need to run wire or power to a lip extension?
No wiring. The extension is a mechanical piece that bolts to the strike lip; all the electrical work stays at the strike itself. It's catalogued with electric strike hardware because it only fits one, not because it draws current.
7) What other HES 4500 accessories should I order at the same time as the lip extension?
Order the extension against your actual frame condition, not by habit: measure from the strike lip to where the latch sits with the door closed and buy enough 1 inch extensions to cover it. Beyond that, the 4500 install is its own faceplate and mounting hardware, and the extension does not replace any of it.
How fast can I get the HES 4501-1 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 HES 4501-1 come with a warranty?
Absolutely. The HES 4501-1 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 HES 4501-1?
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 HES 4501-1 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.