Schlage Philips Flat Head Mach...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$23.02
$18.10
Schlage Philips Flat Head Machine Spring Cage Screw #10-32 x 2-17/40"

Schlage Philips Flat Head Machine Spring Cage Screw #10-32 x 2-17/40"

(No reviews yet) Write a Review

Model: N523-021
Selected Screw Option is

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

$23.02
$18.10
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Schlage SCREWS 

N523-021 Philips Flat Head Machine Spring Cage Screw, #10-32 x 2-17/40", For Use With ND Series Lever & 1-3/8" To 2-1/8" Thick Doors

 

Manufacturer Resources

Product Specs

Subcategory:
Parts and Accessories
Product Group:
Parts and Accessories
Product Subgroup:
Spring Cage Screws
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Screws
Department:
Door Hardware

Schlage N523-021 – Frequently Asked Questions

1) Will the Schlage N523-021 spring cage screw work on a 1-3/4 inch door?
Yes. 1-3/4 inches sits inside the 1-3/8 to 2-1/8 inch door range this screw is specified for, and 1-3/4 is the standard commercial door thickness, so it's the common case. The bottom of that range, 1-3/8 inches, is the older interior door thickness, and the same screw covers it.
2) Is the Schlage ND spring cage screw flat head or pan head, and what bit drives it?
Flat head with a Phillips drive. A flat head is countersunk, so it seats down into the tapered hole rather than standing proud the way a pan or round head does. That matters on a lever, where the screw sits under trim and anything sitting high keeps the rose from pulling in tight.
3) I'm replacing stripped lever screws across a building of Schlage ND locks. Is one screw enough to cover all the doors?
For ND Series levers, yes, as long as the doors fall between 1-3/8 and 2-1/8 inches thick. The N523-021 covers that whole span, so mixed door thicknesses in the same building take the same part and you can buy one screw in quantity rather than sorting by opening. Doors thicker than 2-1/8 inches are the exception and need a longer screw.
4) Will the Schlage N523-021 screw fit other Schlage lock lines, or only ND?
It's specified for the ND Series lever, and that's the fit to go by. Thread size and length are both tied to that lock's spring cage and its 1-3/8 to 2-1/8 inch door range, so for another Schlage line order the screw called out for that line instead of assuming this one crosses over.
5) Is this a genuine Schlage replacement part or an aftermarket screw?
Genuine Schlage, part number N523-021, sold as a replacement part rather than a generic fastener. If you're ordering against a Schlage parts list or a lock that came apart on you, that's the number to quote: #10-32 x 2-17/40 inch, Phillips flat head, for the ND Series lever spring cage.
How fast can I get the Schlage N523-021 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 Schlage N523-021 come with a warranty?
Absolutely. The Schlage N523-021 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 Schlage N523-021?
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 Schlage N523-021 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.
!