Dorma C500 Grade 2 Cylindrical Locksets are key-in-lever door hardware designed for wherever ANSI/BHMA Grade 2 products are required. Dorma C500 locks are certified UL/cUL and ADA compliant.

Application for the Dorma C500 GRade 2 Cylindrical Lockset include Hotels, Apartments, Churches, Municipal Buildings, Retail Complexes, Offices and Warehouses.

Dorma C500 Grade 2 Cylindrical Lockset


  • All DORMA C500 Series locks feature advanced design concepts, providing exceptional reliability, and are manufactured with the finest materials, delivering enhanced durability.
  • DORMA C500 Series locks are easy to install in both wood or hollow metal doors with ANSI/ BHMA A156.115 preparations for cylindrical locks.
  • All C500 Series lever handle locks include special auxiliary support springs to ensure smooth operation and long life.
  • C500 Series locksets have an optional through-bolted chassis for additional strength and increased resistance to vibration (through-bolting recommended).
  • All C500 Series locks are easily adjustable for doors from 1-3/8″–1-3/4″ thick.

Technical Details:

  • Non-handed for simple installation.
  • Key-in-lever lock is through-bolted for additional strength and security.
  • Thru bolts removable for retrofit applications.
  • Lock chassis constructed of steel, stainless steel and precision castings for superior strength and corrosion resistance.
  • Stainless steel latch bolt.
  • Auxiliary deadlocking latch bolt for preventing manipulation when door is closed (all keyed functions).


  • The DORMA C500 Series products are UL and cUL listed and three hour fire rated for A label and lesser class single doors, 4’0″ × 8’0″ maximum.
  • The DORMA C500 is certified to the requirements of ANSI/ BHMA A156.2 Series 4000 Grade 2.
  • The C500 meets A117.1 and ADA requirements for barrier-free accessibility.


  • Brass: 605 (Bright, Clear Coated) or 606 (Satin)
  • Bronze: 613 (Dark Oxidized Satin)
  • Nickel: 619 (Satin)
  • Chrome: 625 (Bright) or 626 (Satin)

To place your order for a Dorma C500 Grade2 Cylindrical Lockset or for a quote, contact your local IDN Branch.

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