Corbin Russwin CK4320 GRD 630 Grade 1 Privacy Lock

Corbin Russwin CK4320 GRD 630 Grade 1 Privacy Lock offers unmatched durability and reliability for high-use environments. Designed for commercial, industrial, and institutional applications, this Grade 1 cylindrical lock is perfect for schools, hospitals, hotels, and more. The CK4300 Series features a satin stainless steel finish that not only enhances its aesthetic appeal but also provides excellent corrosion resistance. This non-handed privacy lock incorporates heavy wrought knobs reinforced with steel for superior impact resistance. With a 1/2" throw stainless steel latchbolt, and a standard 2-3/4" backset, it accommodates doors with a thickness ranging from 1-3/8" to 2". The lock's robust construction includes a steel chassis and a striking ANSI curved lip strike, ensuring long-lasting performance. The CK4320's design includes a 3-1/8" rose escutcheon and a smooth operation that meets the demands of busy environments, making it an ideal choice for both professional and residential applications. With a fire rating of 3 hours, this lock meets rigorous safety standards, providing peace of mind for all users. Experience the reliability and functionality of Corbin Russwin's CK4320 lock, a trusted solution for modern building security needs.

Grade 1 Privacy Lock

Grade 1 Privacy Cylindrical Lock, Global Knob, Non-Keyed, Satin Stainless Steel Finish, Non-handed

The CK4300 Series is ideal for demanding, high-use commercial, industrial and institutional applications, including, Schools, Hotels, Hospitals and Nursing Homes, Churches, Municipal Buildings, Airports, Retail complexes, Offices and Warehouses.

A traditional knob with ANSI/BHMA Grade 1 reliability and durability.

The CK4300 Series is ideal for demanding, high-use commercial, industrial and institutional applications. It's heavy wrought knobs are lined with steel for impact resistance. 

• Handing Non-handed.
• Door Thickness 1-3/8" (35mm) – 2" (51mm).
• Backset 2-3/4" (70mm) standard.
• Lock Chassis Steel, zinc dichromated for corrosion resistance.
• Front Wrought brass or stainless steel, 2-1/4" (57mm) x 1-1/8" (29mm). Accommodates doors beveled 1/8" (3mm) in 2" (51mm).
• Latchbolt Stainless Steel 1/2" (13mm) throw, 7/8" (22mm) diameter.
• Strike Wrought brass or stainless steel, ANSI curved lip standard, 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/4" (32mm) lip to center. Optional strikes, lip lengths and ANSI wrought strike box available
• Cylinder Brass, 6-pin, L4 keyway, 0-bitted standard.

Resources

• CK4300 Dummy Trim Installation Instructions
• CK4300 Installation Instructions
• CK4300 Series Cylindrical Lock Catalog
• CK4300 Series Grade 1 Cylindrical Knob Locks  Cut Sheet