Products Products Categories Mechanical Products Cylindrical Locksets Knob Lockset 8121 Series Knob Lockset 8121 Series Features Suitable for 35mm – 50mm thick door. Backset: fixed 60mm or 70mm. Technical Features Conforms to EN 12209 5 pin 3 Number of Keys Material Specifications Material for knob and rose: SS304. 3pcs nickel plated brass key Rose diameter: 65mm Strike type: T shape Latch up to 200000 cycles SKU Code Type Finish V8121US32D Double Cylinder Deadbolt Satin Steel V8121US5 Double Cylinder Deadbolt Antique Brass Find a Yale Partner Similar products Lever Lockset L6512 Bathroom seriesL6512 Bathroom series (Satin nickel / Antique Brass) Lever Lockset L6517 Entrance series L6517 Entrance Series (Satin nickel / Antique Brass) Knob Lockset 5127 Series5127 Entrance series (Satin Steel / Antique Brass)