Fully threaded
This type of fastener presents as a long threaded bar. The fully threaded stud uses nuts at each end to fasten large parts together. This stud also serves as an adjustable part of machines and structures. With this, nuts can move a fair distance while drawing on a large force. These studs are commonly used with objects that require quick assembly and disassembly.
Tap-end
This second type is typically short in length. Tap-ends purposefully rivet into a punctured hole. They also have a shaft and a long thread designed to accept a nut. The size of the stud measures overall. The tap end has a chamfered point, but the nut end may have a chamfered or round point at the manufacturer’s option. Tap end studs are special stud bolts that require custom bolting requirements.
Double-end
The double-end variation provides equal-length threads on both ends with a shaft in the middle. The threads accommodate nuts and conform to Class 2A tolerances. These fasteners find frequent use in machine and automotive applications.
Bonding stud
The bonding stud is an outright flat and wide-headed thread with holes in the head. In addition, it works as a bond into joint and composite parts providing an immovably attached stud.
Bonding fasteners provide a solid metal anchor point on even difficult-shaped structures made of various materials, including plastic, carbon fiber, and fixing issues for GRP (Glass Reinforced Plastic) products. Still, they’ve also found several other applications where traditional fasteners fall short.
Weld bolt
This type of bolt has a standard-length machine thread. Its thin wide tip design specifically makes it easy to weld. Weld bolts provide a steadfast bond and fabricators frequently use this type of connection. Weld fasteners allow one side of the connection to be securely fastened to the base material.
Dowel screw
The dowel screws into either wood or metal. While wood connections drill directly into the subject material, metal applications affix into a socket. The most frequent applications are ones of little interest to fabricators such as furniture building and attaching balusters to staircases and flooring.
Clinch stud
The last type swages its small thin head into sheet metal notches. Clinch studs secure their head to the mating material while also providing strong torque resistance. The real benefit of a clinch stud is that it eliminates welding.
