We provide hard-wearing Lock Shafts that connect shafts and hubs solidly to create a secure connection between them and reduce stress or wear. They fill the gap between the hub and shaft to ensure easy installation and removal. They utilize surface pressure for maintaining the position and eliminating the need of tapers that may cause abrasion, fretting and corrosion. These Lock Shafts create more contact pressure than any other traditional interference and allow more torque to be conveyed. With easy and swift installation features, they ensure to position the hub accurately on the shaft and guarantee correct angular timing of the hub. In addition to this, they also use the friction bond for developing a zero backlash connection that can be released for removing the mechanical interference fit.