Kwikset Dorian Polished Brass Privacy Lever, Right or Left Handed 1 4 20 Hardware they are designed to conform Item Weight:.625 they are designed to conform to ASTM F1667 Specification Details Brand Name Hillman Callout Size 3 8 inch Thread Size 3 8 24 Thread Type Fine Unit of Measurement SAE Finish Zinc Plated Material Steel with nylon insert Number in Package 100 pack Packaging Type Boxed Package Height 2 in Package Width 3 Specification Details Style Dorian Finish Polished Brass Material Steel Lockset Type Not Keyed (Privacy) Handing Right or Left Handed (reversible) ADA Compliant No Commercial or Residential Residential Indoor or Outdoor Indoor Maximum Door Thickness 1 3 4 in It is a privacy (non keyed) lever with a push button or turn style interior lock and emergency access from the outside