The LSDA LH1000 Series Knob Locksets are heavy duty knobs designed for high traffic usage in either interior or exterior functions where levers aren’t required to meet ADA compliance. LSDA LH1000 Knobs are UL listed for 3-hour fire doors and ANSI/BHMA Grade 1 certified.

Applications for the LSDA LH1000 Series Knob Locksets include Schools and Universities, Hospitals and Industrial facilities.

LSDA LH1000 Series Knob Lockset

Specifications / Features:

Certifications: ANSI/BHMA 156.2 Series 4000, Grade 1; Latch is UL Listed (USA and Canada) for 3-hour fire doors
Latch: 2-3/4” Backset UL Listed included, 2-3/8” Backset UL Listed 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 Best®, Falcon, KSP, Arrow®, 6- or 7-pin
  • Entrance/Office (LH1000)
  • Passage (LH1100)
  • Privacy (LH1200)
  • Store Door (LH1300)
  • Storeroom (LH1400)
  • Classroom (LH1500)
  • Institutional (LH1900)
Design: Ball (B): Round Knob; or Plymouth (P): Flattened Round Knob

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

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