Product Name: 5731SS Cylindrical Ball Knob Lockset for Standard Residential Door with Thickness 35mm - 50mmModel Number: 5731SSPlace of Origin: ChinaFeatures: 1) Other styles of apparence: 587, 578, 5731, 588, 5831, 5791 2) Tubular knob set 3) Easy to install 4) Can be key-alike with dead bolt 5) Master key 7) Adjustable 60mm or 70mm latch 8) Two-piece reinforced knob 9) Suitable for left or right handed door 10) Solid steel or brass material 11) Meets Grade 3 standard 12) Over 175,000 life cycles 13) AB, AC, SS, SB, SP and PB finish available 14) Different knob styles to choose 15) Door thickness: 35mm - 50mm