Plymouth Knob by Schlage F-Series
The Schlage Plymouth is a Grade 2 knob that is part of the Schlage F-Series Collection. Bringing a fresh feeling to any space with a design that's charming, clean and adaptable.
- Applications: Residential singe-and multi-family doors.
- Certifications: ANSI A156.2, 1996, Series 4000 Grade 2.
- Schlage has transitioned their FA series knobs and levers to the F Series. This item NOW comes with the Georgian rosettes.
- Interior screws are not concealed.
- Easy 3-step installation, only a screwdriver needed.
- Quality materials and construction for exceptional security.
- Quality finishes coordinate with plumbing and lighting.
Function: The Schlage Plymouth Knob is available in Keyed Entry (F51A PLY) function.
Finish: The Schlage Plymouth Knob comes in Lifetime Brass (505), Brass (605), Antique Brass (609), Satin Nickel (619), Antique Nickel (620), Matte Black (622), Polished Chrome (625), Satin Chrome (626), and Aged Bronze (716) finish.
All Schlage Locks come standard with Round Corner Adjustable Latch (RCAL) and Round Corner Strike (RCS).
All Schlage Locks come standard with Drive-in Collars needed to convert standard latches into the drive-in function.
If you require Square Corner Strikes (SCS) please order from our Door Strikes Section.
If you require Square Corner Latches (SCAL) please order from our Latches Section.
Door Range: 1-3/8" - 1-3/4" (35mm - 44mm).
Backset: Dual Backset Latch; adjustable for 2-3/8" or 2-3/4" backset.
Strike: 1-5/8" x 2-1/4" Radius Corner Faceplate, 7/8" Housing Diameter, 1/2" Throw, Round Corner.

Door Range: 1-3/8" - 1-3/4" (35mm - 44mm).
Backset: Dual Backset Latch; adjustable for 2-3/8" or 2-3/4" backset.
Strike: 1-5/8" x 2-1/4" Radius Corner Faceplate, 7/8" Housing Diameter, 1/2" Throw, Round Corner.
Function:
- Keyed Entry (Entrance): Unlocked by key from outside when outer knob is locked by turn-button in inside knob.
* For F51A PLY Entry Locks Only:
Cylinder: 5-Pin, Schlage "C" Keyway (SC1), Keyed Different (KD).
- Pin & Tumbler (Standard)
Keying Options: See "Keying" for the following keying options on the F51A PLY Entry Knob:
- Keyed Alike: 1 key works all locks.
- Master Keyed: Locks are Keyed Different (KD) with 2 keys per lock, 1 Master Key opens all locks.
- Construction Key: PK.
Instructions & Templates
Click on the links below to download helpful instructions & templates for this product.
Schlage Plymouth (PLY) Knob
Download Installation Instructions
Schlage Privacy/Passage Lock Door Prep Checklist:
Schlage Privacy/Passage Lock Easy Installation Video: