The CALCANEA locking screws are dedicated for the fixation of the CALCANEA Plate. They are made out of Titanium alloy and delivered non sterile. They are threaded heads adapted to the threaded holes of the plate. The range of screws include only one diameter of 3.5mm and a length from 20mm to 45mm (by 5mm). The fixation screws are self tapping, with a smooth tip to protect soft tissues. The screw head design enables a low profile screw/plate/bone interface.
"A small, non-sterile, threaded rod with a slotted head typically used for internal orthopaedic fracture fixation by being screwed into bone to hold plates or nails to bone or to provide direct interfragmentary stabilization of bone, or it may fasten soft tissue to bone; it is made of a material that cannot be chemically degraded or absorbed via natural body processes (includes implant grade metal such as surgical steel, titanium alloy, or carbon fibre). Screws available are: cortical, cancellous, malleolar, scaphoid, partially-threaded and fully-threaded, self-tapping, and cannulated. A ""lag screw"" can be any of these used to obtain compression. This device must be sterilized prior to use."
integralife.com