Schlage ALX10 ATH 606 Lever Locksets; Door Thickness: 1 3/8 - 1 3/4; Key Type: Keyless; Back Set: 2-3/4; For Use With: Commerical installation; Finish/Coating: Polished Brass; Satin Brass; Material: Brass; Material: Brass; Door Thickness: 1 3/8 - 1 3