Stainless steel hex head flange bolts, also known as flanged hex bolts, are a type of fastener that combines the features of a hex bolt and a washer in one unit. They have a hexagonal head for easy tightening with a wrench or socket, and a flange at the base of the head that acts as a built-in washer.
The flange on stainless steel hex head flange bolts provides several benefits over traditional hex bolts. First, it distributes the load over a wider area, reducing the risk of damage to the material being fastened. Second, it eliminates the need for a separate washer, which can save time and reduce the risk of parts being misplaced or lost.
Stainless steel hex head flange bolts are typically made from a type of stainless steel that contains at least 10.5% chromium by mass, making them highly resistant to corrosion. The most common grades of stainless steel used for flanged hex bolts are 304 and 316, which offer good to excellent corrosion resistance depending on the environment.
Stainless steel hex head flange bolts are commonly used in applications where vibration is a concern, such as automotive and machinery applications, as well as in construction and marine applications where exposure to moisture or other corrosive elements is a concern. They are available in a variety of sizes and thread pitches to suit different applications, and are often used with a matching nut for a complete fastening solution.