Schlage C603-256 Phillips Flat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$17.49
Image coming soon

Schlage C603-256 Phillips Flat Head Combination Screw #12-24 x 1" for A/AL/B250/B600/B700/B800/D/ND/S Series ANSI Strike

(No reviews yet) Write a Review

Model: C603-256 619

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

$17.49
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 C603-256 Phillips Flat Head Combination Screw #12-24 x 1" for ANSI Strike Installation

The Schlage C603-256 is a #12-24 x 1" Phillips Flat Head Combination Screw engineered specifically for use with Schlage A, AL, B250, B600, B700, B800, D, ND, and S Series ANSI strike installations. Designed as a genuine Schlage replacement and installation accessory, this screw pack ensures correct fastener fitment and thread engagement for secure, professional-grade door hardware assembly in commercial applications.

Key Features

  • Precise Thread Specification: #12-24 thread pattern with 1" length ensures proper engagement and secure fastening for ANSI strike installations.
  • Phillips Flat Head Combination Drive: Flat head profile seats flush for clean installation, while the combination drive accepts both Phillips and slotted drivers for installer convenience.
  • Broad Series Compatibility: Compatible with Schlage A, AL, B250, B600, B700, B800, D, ND, and S Series ANSI strikes, covering a wide range of commercial lock families.
  • Genuine Schlage Part: Manufactured as an authentic Schlage component, ensuring proper fit, finish, and performance with compatible Schlage hardware.
  • Commercial-Grade Construction: Built to meet the demands of commercial door hardware applications where reliable fastening is critical to security performance.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Screw Pack
  • Parts and Accessories Type: Installation Accessories
  • Commercial/Residential: Commercial
  • Product Model: C603-256
  • Features: Schlage Parts

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities

Why Schlage C603?

Schlage parts and accessories are engineered to work seamlessly with Schlage lock hardware, maintaining the integrity and performance of the overall door security system. The C603-256 screw pack reflects Schlage's commitment to providing installers with genuine, properly specified components for every stage of a commercial door hardware installation.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Screw Pack
Parts and Accessories Type:
Installation Accessories
Commercial/Residential:
Commercial
Product Model:
C603-256
Features:
Schlage Parts

Schlage C603-256 619 – Frequently Asked Questions

1) What size is the Schlage C603-256 strike screw?
It's a #12-24 x 1 inch machine screw with a Phillips flat head. The #12-24 thread is a machine thread, not a wood thread, so it engages a tapped frame or a threaded strike box rather than biting into wood.
2) Which Schlage locks does the C603-256 screw work with?
It's specified for ANSI strike installations on Schlage A, AL, B250, B600, B700, B800, D, ND, and S Series hardware. That covers the cylindrical lever and knob lines, the deadbolt families, and the mortise-side ANSI strikes in those series.
3) Can I get the strike screws to match the finish on the rest of my door hardware?
Ten finishes are offered: 605 bright brass, 606 satin brass, 609 antique brass, 612 satin bronze, 613E dark oxidized satin bronze, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, and 643E aged bronze. Since the flat head seats flush in the strike, matching the strike finish keeps the head from standing out.
4) Can I use an escutcheon screw pack like the Corbin Russwin 429F31 or 433F77 in place of the Schlage C603-256?
No. The Corbin Russwin 429F31 is a screw packet for the ML2000 N escutcheon and the 433F77 is a screw pack for ML2000 M and P escutcheons, both fastening trim to the lock case. The Schlage C603-256 is a strike fastener, a #12-24 x 1 inch flat head combination screw that anchors the ANSI strike into the frame. They fasten different parts of the opening and are not interchangeable.
5) What is the difference between the Schlage C603-256 and the Corbin Russwin 425F86-8 flat screw?
Thread size and application. The Schlage C603-256 is a #12-24 x 1 inch flat head combination screw for Schlage ANSI strike installation. The Corbin Russwin 425F86-8 is an 8-32 x 3/8 inch flat screw for the ML2000 mortise lock. The 8-32 x 3/8 inch screw is a much smaller fastener and will not engage a strike prep tapped for #12-24.
6) Do I need a Phillips bit, or will a flat driver work on these screws?
Either. The C603-256 uses a combination drive, so a Phillips bit or a slotted screwdriver both seat it. Handy when you're up a ladder with whatever's on your belt.
7) Is the C603-256 a genuine Schlage part or an aftermarket screw?
Genuine Schlage, model C603-256, sold as a factory screw pack for ANSI strike installation. That matters on a strike: the head profile and thread are cut to seat in Schlage's own strike prep.
8) Our facility standardizes on one strike screw across mixed Schlage and Corbin Russwin hardware. Can one part cover both?
No single part covers both. Schlage strikes on A, AL, B250, B600, B700, B800, D, ND and S Series openings take the C603-256, a #12-24 x 1 inch flat head combination screw. Corbin Russwin ML2000 strikes take the 206F57-8 combo screw. Stock both if the building runs both lock lines; the C603-256 is offered in ten finishes including 626 satin chrome and 622 matte black so the head can be matched to the trim.
9) Is this a residential or commercial part?
Commercial. The C603-256 is an installation accessory for Schlage's commercial lock families, and it turns up on office buildings, schools, healthcare, retail, government facilities, multi-tenant residential, and industrial sites.
How fast can I get the Schlage C603-256 619 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 C603-256 619 come with a warranty?
Absolutely. The Schlage C603-256 619 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 C603-256 619?
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 C603-256 619 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.
!