Bolts are cylindrical threaded fasteners. Usually, the bolt is composed of a thread area, a shaft area, and a head area. There is only a part of the threaded area, followed by the unthreaded area. A fully threaded bolt is a bolt without a shaft. Partially threaded bolts are ordinary bolts, and is not fully threaded, but only a part. So, Which is better between the two types of bolts. What are...