Description For hall and closets. Both levels always free; no locking mechanism. DOOR PREP: 2-1/8" standard, 2-3/4" optional. DOOR THICKNESS: 1-3/8" to 1-3/4". FACEPLATE: 1" x 2-1/4". STRIKE: 2-1/4" full lip. BOLT: 1/2" throw. ANSI/BHMA: Grade 2. ADA: Satisfies section 4.13.9 ADA requirements.