Difference Between Studs and Bolts from Double End Stud Suppliers
overall appearance
Studs can be identified by their fully threaded ends and the unthreaded middle portion of the shaft.
Hexagon socket bolts are classified according to the hardness of the screw wire, tensile force, yield strength, etc., that is, the grade of the hexagon socket bolt, and what is the grade of the hexagon socket bolt.