Kwikset Ultramax Key, Ilco Key Blank For Kwikset Ultramax Locksets, Kwikset 6 Pin Key With The "K" Design Head Shape, Same Offset Shoulders As The Old Titan Key Item #150-543, Blade Specifications For Both The Old Titan Key & The New Ultramax Kwikset 6 Pin Key Are The Same, So Key Blank Can Be Used In Both Titan & Ultramax Locksets.