Corbin Russwin 445F85 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$64.35
$58.49
Corbin Russwin 445F85 ML2000 Series Thimble Pack, 2 Piece Pack, For Knob With Rose Trim

Corbin Russwin 445F85 Grade 1 ML2000 Series Thimble Pack, 2 Piece Pack, For Knob With Rose Trim

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Model: 445F85-605
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$64.35
$58.49
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Corbin Russwin 445F85 ML2000 Series Thimble Pack 2-Piece for Knob with Rose Trim

Genuine Replacement Thimble Pack for ML2000 Mortise Lock Sectional Knob Trim

The Corbin Russwin 445F85 is a genuine 2-piece Thimble Pack designed specifically for use with the ML2000 Series Mortise Lock and Sectional Knob Trim Designs. This commercial-grade replacement part ensures proper fit and function when servicing or assembling Corbin Russwin ML2000 mortise locksets equipped with knob and rose trim configurations. Sourced directly from Corbin Russwin, this thimble pack maintains the integrity and performance of your ML2000 Series hardware installation.

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 lock parts and accessories deliver professional-grade reliability engineered to maintain the performance of the ML2000 Series Mortise Lock platform in demanding commercial environments. The 445F85 Thimble Pack is a genuine OEM component, ensuring correct fit and sustained functionality for knob with rose trim configurations. Engineered for commercial door hardware applications where dependable, long-term performance is essential.

Product Specs

Product Group:
Lock Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Lock Parts and Accessories
Commercial/Residential:
Commercial
Subcategory:
Parts and Accessories
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Product Function:
Thimble Pack
For Use With:
ML2000 Mortise Lock
Department:
Door Hardware

Corbin Russwin 445F85-605 – Frequently Asked Questions

1) What is the Corbin Russwin 445F85 thimble pack actually used for?
The 445F85 is a two-piece thimble pack for Corbin Russwin ML2000 Series mortise locks fitted with sectional knob and rose trim. Thimbles are the small sleeve pieces that sit at the trim/spindle interface on knob-with-rose assemblies, so this is a service part you order when rebuilding or re-trimming an ML2000 knob lockset, not a complete lock or trim set.
2) Will the 445F85 thimble pack work with ML2000 lever trim or escutcheon trim?
No. The 445F85 is specific to knob with rose trim on the ML2000 Series, in the sectional trim designs. If your opening has lever trim or a full escutcheon plate, this is the wrong service part and you need the thimble or trim component matched to that trim design.
3) Does the 445F85 come as a pair, or do I need two packs per door?
One pack contains two pieces, which covers a knob-with-rose ML2000 trim set. Order one pack per lockset you are servicing rather than one per side.
4) Does using the 445F85 thimble pack affect the fire rating of my ML2000 mortise lock?
Servicing with the factory part keeps the assembly as built. The ML2000 lockset it belongs to is UL/cUL listed to UL10C positive pressure for 3-hour fire doors up to 4 ft x 10 ft single or 8 ft x 10 ft pair, and is ANSI/BHMA A156.13 Series 1000 Grade 1 for both operational and security. Substituting non-OEM trim components is what puts that listing in question.
5) I'm rebuilding an ML2000 knob lockset. What else should I check while the trim is off?
With the knob and rose off, check the latch and strike engagement: the ML2000 uses a 2-3/4 inch backset with a two-piece anti-friction latchbolt at 3/4 inch (19mm) throw, a 9/16 inch (14mm) effective auxiliary latch, and a 1 inch (25mm) stainless deadbolt throw into an ANSI straight lip strike. Standard door thickness is 1-3/4 inch (44mm). If the latch is not seating the auxiliary bolt on the strike lip, the thimbles are not your problem.
6) Is this a genuine Corbin Russwin part or an aftermarket copy?
It is a genuine OEM Corbin Russwin component for the ML2000 platform, so the fit at the rose and spindle is the factory dimension rather than an approximation.
7) Do I have to specify handing when ordering the 445F85 thimble pack?
No handing is called out for the thimble pack. The ML2000 lockbody itself is handed but uses a quick reversible latchbolt that re-hands without opening the lock case, so field re-handing does not change which thimble pack you need.
8) Is the 445F85 a residential part or commercial only?
Commercial. It belongs to the ML2000 mortise platform used in offices, schools, healthcare, retail, industrial buildings, multi-tenant residential and government facilities, not to residential tubular knob hardware.
How fast can I get the Corbin Russwin 445F85-605 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 445F85-605 come with a warranty?
Absolutely. The Corbin Russwin 445F85-605 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 445F85-605?
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 445F85-605 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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