High Strength Friction Grip bolts require the use of particular nuts intended to function in tandem with the bolts for optimum installation and performance. These nuts are often referred to as HSFG nuts or stress control nuts. They are critical in obtaining the necessary clamping force and maintaining the bolted connection's integrity. great Strength Friction Grip bolts are extensively used in structural steel connections such as bridges, skyscrapers, and other major construction projects that demand great strength and dependability. They're also employed in a variety of industrial applications, such as machinery, equipment, and infrastructure projects.