Hex bolts are also called hexagon screw head bolts, hex cap bolts, hex-cap screws, or machine bolts. They are a very common choice when it comes to construction and repair. There is a variety of sizes and diameters. Whichever bolt you choose, just make sure that it’s from a credible bolt and nut supplier.
The grading of a bolt refers to its material strength. As its name implies, ordinary hex bolts have a hexagonal head and come with machine threads for a firm and rough handling. Hex bolts are available with standard threading or full threading, depending on the length of the bolt.
YZP or Yellow Zinc Plating refers to the extra coating the bolt receives. It has a yellow or gold finish. Its purpose is to increase overall protection and avoid corrosion.