The standard italian door handles are assembled between 45 to 55 mm diameter x 4 to 12 mm thick roses, equipped with internal right and left hand spring system. All the internal and external components of the spring system are constructed using Nylon® PA6 (containing 30% Fibre glass). Even in conditions of high usage this material offers a excellent load capacity and is very resistant to flexible and tensile mechanical stresses, ensuring high resistance to wear and friction.
The spring system has a central spindle guide, this is to assist the fitting process and to ensure the lever handles are located in the correct position. The handles are supplied with wooden screws as standard (Bolt through fixing screws are available on request). To ensure correct fixing of the brass cover-rose, secure by a using the reference lip at the bottom of the spring system and push on. Those items are patented product, designed, constructed and tested in Italy.
The corrosion test in salt spray is the most critical test of those we have done on our products. 80 hours in salt spray correspond to 1 year use in normal use condition.