Hex bolts are fasteners with a hexagonal head, designed to be tightened or loosened using a wrench. They are commonly made from materials like steel or stainless steel, providing strength and durability for various applications. The threaded shaft allows for secure connections in construction, machinery, and automotive industries. These bolts come in various sizes and grades, which indicate their strength and suitability for different tasks. Hex bolts are often used with nuts and washers to ensure a tight fit. Their versatility makes them a popular choice for both professional and DIY projects.