Hex bolts are a type of threaded bolt, characterized by their six-sided hexagonal-shaped head. They are suitable for use in a wide range of applications, typically machinery and construction.

Flange bolt - Flange bolts are widely used in plumbing and automotive applications because they have a washer-like flange behind the bolt head that speeds up manufacturing, distributes clamping force, and protects the mating surface.

Hex flange bolts - Hex flange bolts are used in vehicle frames, especially truck frames, and anywhere else a hex washer head bolt is needed. Due to the wide bearing surface's capacity to evenly distribute clamping force, they can be employed with huge and unevenly shaped holes.

Stud Bolt - Essentially, a stud is basically a threaded bar. Although some studs have heads that become permanently absorbed into the object they are fastened to, this frequently resembles a machine screw without a head.

Collar bolt - In removable bundle heat exchangers, collar bolts are used to secure the bundle and remove the channel without interfering with or damaging the seal between the tube sheet and the shell.