In industrial fastening, rivets are permanent mechanical fasteners. Once installed, they provide a high-shear strength connection that is much more resistant to vibration than screws or bolts because they do not have threads that can “back out.”
A rivet consists of a smooth cylindrical shaft with a head on one end. The opposite end is called the tail. Upon installation, the tail is upset (deformed) by mechanical force, creating a “shop head” that permanently clinches the materials together.
Rivet selection is typically based on access to the joint and the required strength.
| Rivet Type | Key Feature | Primary Application |
| Solid Rivets | The strongest type; requires access to both sides. | Aerospace (Aircraft skins), bridge construction, and structural steel. |
| Blind (Pop) Rivets | Can be installed when only one side of the material is accessible. | HVAC ducting, sheet metal assembly, and electronics. |
| Drive Rivets | Installed by hitting a center pin with a hammer to flare the shank. | Masonry, signage, and trailer body panels. |
| Split (Bifurcated) | Saw-tooth ends that pierce through soft materials. | Leatherwork, plastics, and soft wood. |
| Structural Blind Rivets | High-strength version of a pop rivet with a locking internal mandrel. | Heavy truck bodies and railway cars. |
To prevent galvanic corrosion (where one metal “eats” the other), the rivet material should ideally match the material being joined:
Aluminum Rivets: Lightweight and corrosion-resistant; used for aluminum sheets.
Steel Rivets: High strength; used in structural steel and automotive frames.
Stainless Steel: Used in food processing and marine environments for maximum hygiene and rust resistance.
Copper/Brass: Often used for electrical conductivity or decorative finishes.
Permanent Connection: Unlike bolts, they cannot be easily removed without drilling, making them tamper-resistant.
Vibration Resistance: Essential in aircraft and high-speed machinery where threaded fasteners might loosen over time.
Lightweight: Rivets generally weigh less than a bolt-and-nut combination of equivalent strength.
Automation: Blind rivets allow for extremely fast assembly on high-speed production lines.
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