Tuff Stuff CL0326T Stainless Steel 26D Privacy Bed & Bath Light Commercial Cylindrical Ball Knob Grade 3 Lock Set Lockset. All Metal Parts. Finish: Stainless Steel. Type: Light Commercial. Grade: 3 - Light Duty. Function: Privacy Bed & Bath. Adjustable backset 2-3/8" or 2-3/4". Fits all wood or steel doors from 1-3/8" to 1-3/4" thick. Internal mechanism heavy gauge cold rolled steel. Positive push and turn button locking mechanism. 3" threaded rosette outside. Panic proof mechanism. Concealed mounting screws. push button inside, No key outside, Mushroom Ball Type Construction, For Use On Interior Or Exterior Wood Or Metal Doors, 1-3/8" To 1-3/4" Thick.