A bolt is a type of threaded hardware fastener that is used to position two workpieces in specific relation to each other. Bolts come in several configurations for their application and specification variances. Since the terms “bolt” and “screw” were in use before the advent of easily-produced helix fasteners, they are often synonymous.
There are dozens of different types of bolts, some of which include anchor bolts, carriage bolts, elevator bolts, flange bolts, hanger bolts, hex bolts, lag bolts, and shoulder bolts. Additionally, bolts are available in a wide range of materials, including steel, stainless steel, bronze, Copper, Zinc. They are also available in a wide range of Grades, including grade 2, grade 5, grade 8, and grade 9. They are also available in Metric, including 8.8, 10.9, and 12.9.