... handle, can satisfy the use safety requirementTechnical Data Follower: 7mm, 8mm, 9mm Backset: 55mm,60mm Distance:72mmForend Type; Round ,Square head ... (DIN 18250 Class 3;EN & CE 1121 Qualified) NameSpec.Follower8×8mm 9×9mmBackset55mm,( 55mm,60mm)Distance72mm Forend typeSquare head (Round or ...