Structural rivets are stronger than standard rivets and are designed for heavier-duty applications.
Standard rivets are a good choice for light to medium-duty applications where cost is a primary concern. Structural rivets are typically used in applications where the materials being joined are thick or where the joint is subjected to high loads. They have increased shear and pull-out strength, higher resistance to vibrations and, in some cases they are weather proof.
Here are some examples of situations where each type of rivet would be appropriate:
- Use standard rivets to fasten together thin pieces of metal, such as the body panels of an automobile.
- Use structural rivets to fasten together thick pieces of metal (such as the fuselage of an aircraft).
- Use standard rivets to fasten together materials that are not prone to vibrations, such as furniture.
- Use structural rivets to fasten together materials that are prone to vibrations, such as the engine mounts of an automobile.
Typical structural rivet applications:
- Automotive industry
- Commercial vehicles.
- Air Conditioning and Heating.
- Metal construction and metal structures
- Electrical appliances.
- Agricultural machinery
- Electrical boxes.
Design of a structural rivet
Instead of the breakaway mandrel of a standard rivet, structural rivets have a locking mandrel, which means that the mandrel is not pulled through the hole but is instead locked into place within the rivet body. This provides the rivet with a higher shear strength and pullout strength, as well as greater resistance to vibrations.
A standard rivet pin head normally deforms the body to attach the rivet to the substrate (pic 1a). The pin head of a structural rivet is usually longer than in a standard rivet (see diagrams). This gets pulled into the rivet body and locked into place within it (pic 1b). This provides the rivet with a higher shear strength and pull-out strength, as well as greater resistance to vibrations.
Structural rivets come in many shapes, sizes and design. Scell-it UK have a wide variety available including Superiv, T-lock and Hyperiv.
Contact us at Scell-it UK for more information or help specifying the right rivet for your job.