LSDA | Locksmith Dealers of America

The LSDA LH1000 Series Cylindrical Knob Locksets are designed for high traffic applications. Two knob designs make these an easy retrofit in many places that do not require levers for accessibility. These locks are recommended for use on exterior and interior doors.

Typical applications include Offices, Hospitals, Schools, Multi-Family Buildings, Industrial Sites, and Public Buildings.



Certifications: ANSI/BHMA 156.2 Series 4000, Grade 1; Latch is UL Listed (USA and Canada) for 3-hour fire doors, included
Latch: 2-3/4” Backset UL Listed included; 2-3/8” UL Backset available
Handing: Non-Handed
Materials: Bronze, Brass or Stainless Steel
Strike: 4-7/8” x 1-1/8” ANSI full lip
Door Prep: 2-1/8” diameter bore, 2-1/4” x 1-1/8” latch face
Door Thickness: 1-3/8” — 2″ Standard; 2-1/4” thick door models are available
  • Cylinders: Equipped with SC4 rekeyable 6-pin brass cylinders, compatible with LSDA Replacement C500 cylinders and many other retrofit cylinders including most high security brands
  • SFIC: Some models prepped for Small Format Interchangeable Core (SFIC), such as Best®, Falcon, KSP, Arrow®, 6- or 7-pin
  • Ball (B): Round Knob
  • Plymouth (P): Flattened Round Knob
  • Entrance/Office (LH1000)
  • Passage (LH1100)
  • Privacy (LH1200)
  • Store (LH1300)
  • Storeroom (LH1400)
  • Classroom (LH1500)
  • Institutional (LH1900)

To place your order for an LSDA LH1000 Series Cylindrical Lever Lockset or for a quote, contact your local IDN Branch. Visit for more information on LSDA LH1000 Series Cylindrical Knob Locksets.

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