How important is it to use lubricant when fastening screws to prevent damage and ensure smooth operation?

Using lubricant when fastening screws is important to prevent damage and ensure smooth operation. Lubricant reduces friction between the screw and the material, making it easier to tighten the screw without causing damage. This helps to prolong the life of the screw and the material it is being fastened to, ultimately leading to a more efficient and effective assembly.