Corbin Russwin CK4320 Grade 1 Privacy Knob Lock - ANSI F76
Latchbolt by knob either side. - Outside knob locked by push button. - Outside knob unlocked by emergency release tool outside, by rotating inside knob or by closing door. - Inside knob always free.
Trim Style: Global - GRD
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.
Warranty: Three-year limited.
ANSI/BHMA: Certified and meets A156.2 Series 4000, Grade 1.
UL-cUL: All locks listed for A Label and lesser class single doors, 4' x 8'. Letter F and UL symbol on latch front indicate listing.