LSDA 100 Series Grade 2 Knob Locksets feature cylindrical construction for use on a variety of commercial doors. Classic Ball (B) and Plymouth (P) styles make these excellent retrofit and replacement locks. These locks are recommended for use on exterior and interior doors. Typical applications include Offices, Commercial Properties, Retail Spaces, and Multi-Family Buildings.

LSDA 100 Series Grade 2 Knob Locksets

Standard Features:

Certification: ANSI/BHMA 156.2 Series 4000, Grade 2
Latch: 2-3/4″ or 2-3/8″ Backset available; UL Listed latches or Drive-In latches available
Handing: Non-Handed
Materials: Knobs and roses are stainless steel, brass or bronze. Mechanism is constructed of cold-rolled steel and zinc dichromate finished parts for rust and corrosion resistance.
Strike: 4-7/8″ x 1-1/4″ ANSI full lip
Door Prep: 2-1/8″ diameter bore, 2-1/4″ x 1″ latch face
Door Thickness: 1-3/8″ – 1-3/4″
  • Cylinders: Some models sold less cylinder and less latch, lock is compatible with LSDA Replacement C500 cylinders and many other retrofit cylinders including most high security brands. Some models sold complete with cylinder and latch
  • SFIC: Some models prepped for Small Format Interchangeable Core (SFIC), such as Best®, Falcon, KSP, Arrow®, 6- or 7-Pin
Design: Ball (B): Round Knob; or Plymouth (P): Flattened Round Knob
  • Entrance/Office (100)
  • Passage (110)
  • Privacy (120)
  • Exit (130)
  • Storeroom (140)
  • Classroom (150)
  • Institutional (190)

Do you have a question, or need a quote? Contact your local IDN Branch, or feel free to fill out our IDN Experts Follow-up form below. Visit for more information on LSDA 100 Series Grade 2 Knob Locksets.

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