The 4.9 mm Interlocking Screw is a heavy-duty, fully threaded cortical screw specifically designed for use with large-diameter intramedullary nails in the fixation of major long bone fractures, particularly in the femur and tibia. Manufactured from high-strength stainless steel or titanium alloy, the 4.9 mm screw delivers exceptional load-bearing capability and resistance to torsional forces.

It is commonly used in proximal and distal locking of large IM nails and features a self-tapping or self-drilling tip, depending on the system design, for simplified insertion and reduced surgical time. The large core diameter provides strong purchase in dense cortical bone, minimizing the risk of screw loosening or migration under load.

Available in a wide range of lengths, the 4.9 mm screw ensures compatibility with various nail systems and accommodates differences in patient anatomy and fracture location.