Different Bolt Grades And Their Features:

Grade 2: This kind of bolt is manufactured from low or medium carbon steel, and thus has the minimum tensile strength.

Grade 5: Slightly moving upwards in the grading scale, there is another bolt type that is made using medium carbon steel where the alloy is tempered and quenched. They have a better holding strength as compared to Grade 2 Bolts.

Grade 8: Manufactured from carbon alloy steels, Grade 8 bolts supports extra heavy loads and is designed to handle larger loads.

Grade S: The fasteners made with Grade S are able to sustain the highest amount of pressures and are highly durable. In the great number of applications which require high-load, the use of Grade S Bolts is made.