Corbin Russwin 221F51 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$11.56
Corbin Russwin 221F51 ML2000 Armored Front Screw

Corbin Russwin 221F51 Grade 1 ML2000 Armored Front Screw

(No reviews yet) Write a Review

Model: 221F51-626
Selected Finish is

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

$11.56
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

Corbin Russwin 221F51 ML2000 Series Armored Front Screw Pack for Mortise Locksets

Genuine Replacement Screw Pack for ML2000 Series Mortise Locksets

The Corbin Russwin 221F51 is a genuine OEM armored front screw pack designed specifically for the ML2000 Series Mortise Locksets. This commercial-grade replacement component ensures a secure, factory-correct fit when servicing or maintaining Corbin Russwin ML2000 Series mortise lock hardware. Sourced directly from the manufacturer, this screw pack is the trusted choice for facilities managers, locksmiths, and door hardware professionals seeking reliable replacement parts for commercial door hardware applications.

Professional Features & Benefits

  • ANSI/BHMA Grade 1 mortise lock per A156.13 Series 1000, Operational and Security Grade 1
  • UL Cycle above and beyond: 14.5 Million Cycles (Verification ID: V875753)
  • Patented Quick Reversible latchbolt — reverse handing without disassembling the lock case
  • Multi-function capability: 12 functions configurable from one ML2054 lockbody
  • Heavy-gauge steel lockcase 5-7/8" x 4" x 15/16"; 1" stainless steel deadbolt, 1" throw
  • 3/4" (19mm) throw anti-friction two-piece latchbolt requires less force to close
  • Wide variety of trim designs including Muséo®, Vineyard™, Behavioral Health (BHSS/BLSS)
  • Status indicator options for locked/unlocked visibility (sectional and escutcheon trim)
  • Motorized Electric Latch Retraction (MELR) available for ML20900 series
  • Thru-bolted trim designs for proper alignment and increased security
  • Can be used with new or existing Corbin Russwin key systems; accepts most other manufacturers' cylinders
  • UL/cUL listed, UL10C positive pressure; 3-hour fire door up to 4' x 10' single or 8' x 10' pair
  • Ten-year mechanical warranty; five-year MELR; two-year electrical

Technical Specifications

  • Grade: ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1
  • Handing: Handed; quick reversible — re-handed without disassembling the lock case
  • Door Thickness: 1-3/4" (44mm) standard; optional thicknesses available
  • Backset: 2-3/4" (70mm)
  • Lockcase: Heavy-gauge steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm)
  • Armored Front: Wrought brass, bronze, or stainless steel, 8" x 1-1/4"
  • Latchbolt: 2-piece mechanical with anti-friction insert, 5/8" x 1" x 3/4" (19mm) throw
  • Auxiliary Latchbolt: 9/16" (14mm) effective throw; deadlocking
  • Deadbolt: One-piece stainless steel, 19/32" x 1-1/4" x 1" (25mm) throw
  • Strike: Wrought brass, bronze, or stainless steel, ANSI straight lip, 4-7/8" x 1-1/4" x 1-1/8" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Spacing: C. to c. knob/lever to cylinder: 3-5/8" (92mm); knob/lever to thumbturn: 2-7/16" (62mm)
  • Certifications: ANSI/BHMA A156.13 Grade 1; UL/cUL UL10C 3-hour positive pressure; ADA A117.1; California State Fire Marshal; Windstorm/Hurricane certified
  • Warranty: Ten-year mechanical; five-year MELR; two-year electrical

Professional Applications

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

Why Choose Corbin Russwin Quality?

Corbin Russwin door hardware parts and accessories are manufactured to exacting commercial-grade standards, ensuring reliable performance and precise compatibility with existing ML2000 Series Mortise Lockset installations. This genuine OEM screw pack provides the factory-correct fastening solution needed to maintain the integrity and security of your Corbin Russwin hardware. Engineered for demanding commercial applications where dependable performance and proper fit are essential.

Product Specs

Product Group:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Screw Pack
Commercial/Residential:
Commercial
Subcategory:
Parts and Accessories
Product Attribute:
Parts and Accessories
Department:
Door Hardware

Corbin Russwin 221F51-626 – Frequently Asked Questions

1) What is the Corbin Russwin 221F51 screw pack actually for?
It's the OEM fastener pack that holds the armored front onto a Corbin Russwin ML2000 Series mortise lock case. It is not a lockset, a trim, or a face plate on its own, so if the armored front itself is damaged you need the front as well as these screws. The ML2000 armored front it mounts to is wrought brass, bronze or stainless, 8 x 1-1/4 inches.
2) Will these screws work on my ML2054 or other ML2000 mortise lock?
Yes. The ML2000 family shares one lock case and one armored front size across functions, including the multi-function ML2054 body that configures to 12 functions, so the 221F51 front screws are common to the series. The case they mount to is heavy-gauge steel at 5-7/8 x 4 x 15/16 inches.
3) Can I use this screw pack on a fire-rated door assembly?
Yes, provided you are restoring an ML2000 mortise lock to its factory configuration. The ML2000 is UL/cUL listed to UL10C positive pressure and rated for 3-hour fire doors up to 4 by 10 feet single or 8 by 10 feet pair. Using the OEM front screws is what keeps that listing intact; substitute hardware-store fasteners can compromise it.
4) Which finishes does the 221F51 armored front screw come in?
Four: 605 bright brass, 612 satin bronze, 613 satin bronze oil-rubbed, and 626 satin chrome. Match the screw finish to the armored front already on the lock, not to the lever trim, since the front and the trim are often specified in different finishes on the same opening.
5) Do I need new front screws when I re-hand an ML2000 mortise lock?
No. The ML2000 uses a patented quick reversible latchbolt that re-hands without disassembling the lock case, so a handing change doesn't consume or alter the front screws. Order the 221F51 pack when screws are stripped, missing, or the finish no longer matches the front you are installing.
6) My building standardizes on Corbin Russwin ML2000 mortise locks. Is this the right part to stock for MRO?
It is, and it's a sensible line item for a facility running ML2000 openings. The series is ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 with UL cycle testing at 14.5 million cycles, so the lock bodies outlast their fasteners. Stock the front screws in the finish that matches your standard armored front.
7) Will the 221F51 screws fit a Schlage L9000 or Sargent 8200 mortise lock?
Treat them as ML2000-only. These are the OEM armored front screws for the Corbin Russwin ML2000 Series; front screw thread, length and head profile are manufacturer-specific on mortise locks. For another brand's mortise lock, source that maker's front screw pack rather than adapting these.
8) Does the door thickness or backset affect which front screws I need?
No. ML2000 door thickness (1-3/4 inch standard, with optional thicknesses) and the 2-3/4 inch backset affect the lock body, trim and spindle, not the armored front fastening. The 221F51 pack is selected on finish alone.
How fast can I get the Corbin Russwin 221F51-626 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 Corbin Russwin 221F51-626 come with a warranty?
Absolutely. The Corbin Russwin 221F51-626 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 Corbin Russwin 221F51-626?
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 Corbin Russwin 221F51-626 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.
!