The Schlage Contractor Series Satin Chrome Double Cylinder Deadbolt adds an extra layer of security to your interior or exterior knob or lever. Plus it s been designed and tested with strength and durability in mind for use in light commercial applications. Brand Name: Schlage Finish: Satin Chrome Material: Zinc Product Type: Double Cylinder Deadbolt Indoor or Outdoor: Indoor and Outdoor Height: 2.5 in. Width: 2.5 in. Commercial or Residential: Residential Minimum Door Thickness: 1-3/8 in. Number of Keys Included: 2 Maximum Door Thickness: 1-3/4 in. Door Direction: Left and Right Grade: 1 Grade ADA Compliant: No Packaging Type: Boxed Bolt Length: 1 in. Number in Package: 1 pk