A rivet is one of the most reliable and widely used mechanical fasteners in the world — and yet most people walk past thousands of them every day without a second thought. From the fuselage of a commercial aircraft to the frame of a leather bag, rivets quietly hold our world together. If you’ve ever searched for a ‘rivet definition,’ wondered ‘what are rivets used for,’ or even typed the common misspelling ‘rivot’ into a search bar, you’ve landed in the right place.
This guide covers everything: the full rivet definition, how rivets work step by step, every major type including the button rivet, a direct comparison between rivet bolts and traditional bolt fasteners, rivet materials, applications across industries.
Rivet Definition: What Is a Rivet?
What is a rivet?A rivet is a type of fastener. It is used to connect two pieces of metal together. A rivet is made of a smooth, cylindrical shaft, also called the “shank.” The head of the rivet is pre-formed, meaning it is shaped before it is attached. It is inserted through aligned holes in two or more materials, and its tail end, which sticks out, is deformed — that is, it is changed shape — to permanently lock the joint together. Unlike bolts, rivets cannot be removed without drilling them out.
In simple terms, think of a rivet as a pin with two heads. One head is there from the start, and the other is created during installation. The second head makes the joint permanent and strong.
Rivets are classified as permanent mechanical fasteners. This means they are not designed to be taken apart. This is what makes them different from screws and bolts, which can be removed and reused. When rivets are installed correctly, they create a strong joint that won’t loosen in high vibrations. This makes rivets the best choice for fasteners in some of the world’s most challenging engineering environments.
Parts of a Rivet
Understanding rivet anatomy helps clarify both how rivets work and why certain types behave differently. A standard solid rivet has five key parts:
- Factory Head (Pre-formed Head): The wider end of the rivet, formed during manufacturing. It sits on the accessible side of the joint and prevents the rivet from pulling through the hole.
- Shank (Body): The smooth, cylindrical shaft that passes through the aligned holes in the materials being joined.
- Tail: The narrow end of the rivet that protrudes on the far (blind) side after insertion. This is the part that is deformed during installation.
- Shop Head (Bucktail): The second head formed by the deformation of the tail. It does not exist before installation; it is created during the riveting process and is what locks the materials together.
- Mandrel: Found only in blind rivets. This is an internal pin that a rivet gun pulls to deform the rivet body from within, allowing installation from one side only.
How Do Rivets Work?
Rivets work through a simple but remarkably effective principle: the permanent deformation of one end of a metal pin creates two heads that clamp materials together from both sides. This is sometimes called rivet upsetting or bucking.
The process works as follows:
- Drill or punch a pilot hole. Aligned holes are created in all materials to be joined. The hole diameter should closely match the rivet’s shank diameter.
- Insert the rivet. The shank is pushed through the aligned holes until the factory head sits flush against the surface of the material.
- Apply mechanical force. A rivet gun, hammer, or pneumatic press is used to strike or pull the tail end of the rivet. The method varies by rivet type.
- The tail deforms. Under force, the tail spreads outward and flattens — typically expanding to approximately 1.5 times the original shank diameter — forming the shop head (bucktail).
- Joint is complete. The two heads — one on each side of the material — clamp the joint permanently. The shank prevents lateral (radial) movement, while the heads prevent the materials from separating.
Why are riveted joints so resistant to vibration?
Threaded fasteners (like bolts and screws) work by using friction and clamping force. This can weaken them over time when they are used many times. Rivets are different because their heads are physically deformed into position. There is no thread to loosen. This is why rivets are still the best way to connect parts of planes, ships, and bridges together. They work well in places where things are always moving and shaking.
Types of Rivets: A Complete Guide
Not all rivets are the same. Different applications, materials, and access conditions call for different rivet designs. Below is a complete overview of every major rivet type, followed by a comparison table to help you choose the right one.
1. Solid Rivet
The solid rivet is the oldest type of rivet. It was first used in the Bronze Age and in ancient Egypt. It has a solid metal shaft with a single pre-formed head. To install it, you need to access both sides of the joint. One person or tool holds the factory head in place while another deforms the tail to form the shop head.
Solid rivets are the strongest type of rivet and are used in situations where things must last for a long time and work well without breaking — like in aircraft structures, bridges, pressure vessels, and heavy machinery. Their main limitation is that installation requires access from two sides and special tools.
2. Blind Rivet (Pop Rivet)
The blind rivet, also referred to as the pop rivet, was developed in Britain in 1916 and gained significant popularity during and after World War II. It is the most prevalent rivet type in contemporary use. The term “blind” in this context signifies the capability to be installed when only one side of the joint is accessible.
A blind rivet is composed of a hollow rivet body and an internal mandrel. The rivet is inserted through the pre-drilled hole, and a rivet gun grips and pulls the mandrel. This process involves the insertion of the mandrel head into the rivet body, resulting in the expansion of the blind-side end outward. The mandrel is then designed to break at a pre-determined weak point (the neck), resulting in the permanent setting of the rivet.
Blind rivets are utilized across a wide range of industries, including electronics enclosures, automotive trim, HVAC ductwork, signage, and marine applications.
3. Button Rivet (Round Head / Dome Head Rivet)
| What is a Button Rivet? A button rivet — also called a round head rivet or dome head rivet — is a rivet with a distinctly rounded, dome-shaped factory head. The smooth, convex profile distributes load evenly, resists pull-through in thinner materials, and provides a clean finished appearance. Button rivets are one of the most common rivet head styles used in general metalwork, aerospace panels, and structural assemblies. |
The rounded head of the button rivet is better than the flat head of the rivet. The dome shape means there are no sharp edges that could potentially damage the surface. Button rivets are often used in the aerospace industry. They are used in places where the joints of the fuselage panels need to be connected. The rivets have a head that is slightly protruding but smooth. This is acceptable because it is better for the rivet to be smooth than to be rough. Dome profiles are also used because they can distribute weight better than other profiles.
Button rivets are available in three types: solid, semi-tubular, and blind (pop). The term “button rivet” refers to the shape of the head, not how it’s installed. So, you might find button-head solid rivets, button-head blind rivets, and so on. When choosing a button rivet, the most important specifications are head diameter, shank diameter, shank length, and material.
4. Semi-Tubular Rivet
The semi-tubular rivet looks like a solid rivet, but it has a partial hole drilled into the tail end of the shank. When pressure is applied during installation, the hollow tail rolls outward like the cuff of a sleeve rather than being fully compressed. This requires about 25% less force to set than a solid rivet.
Semi-tubular rivets are perfect for fast automated factories. They are used in many things, like hinges, car parts, electronics, and appliances. The rolled tail creates a clean, consistent finish that looks good when you can see it.
5. Split Rivet (Bifurcated Rivet)
Split rivets, also called bifurcated rivets, have a shank that is slotted lengthwise, creating two separate “legs.” During installation, the two legs spread out and grip the material, similar to how a cotter pin works. This design lets the rivet pierce certain soft materials by itself without having to pre-drill.
Split rivets are not used in structural or high-load applications. They are usually found in soft materials like leather, fabric, wood, and light plastics. Examples of these materials include wallets, belts, and small furniture joints. They are easy to install and you don’t need any special tools.
6. Flush Rivet (Countersunk Rivet)
Flush rivets, also called countersunk rivets, have a flat, cone-shaped head that sits flush with the surface of the material. The hole must be countersunk (tapered) to fit the angled underside of the rivet head. Once installed, the head sits level with — or very slightly below — the surface, creating a perfectly smooth finish.
This design is important for aerospace and automotive applications where surface aerodynamics matter. Rivet heads that stick out on an aircraft skin create drag. Flush rivets get rid of this drag. They are also used on visible exterior surfaces where a smooth, uniform appearance is required.
7. Self-Piercing Rivet (SPR)
Self-piercing rivets are one of the most technologically advanced types of rivets. You don’t need to pre-drill the holes. A hydraulic or servo-driven press forces the semi-tubular rivet through the top layer of material and partway into the bottom layer, but not all the way through. This creates an interlocked joint within the bottom material itself.
SPRs are especially useful for joining different materials, like steel and aluminum, which usually can’t be welded. This is a common problem in making lightweight car bodies. They also create excellent water and gas-tight joints and are suited to high-speed, fully automated production lines.
8. Drive Rivet
A drive rivet is a type of blind rivet. It has a short mandrel protruding from the head. The mandrel does not go through the body of the rivet. Installation requires only a hammer. Strike the mandrel, and it will go into the rivet body. This makes the tail end flare outward on the blind side.
Drive rivets are easy to install, cheap, and fast, but they’re not as strong as other rivets. They are used for simple jobs like attaching nameplates, signs, and trim panels.
Rivet Type Comparison Table
Use this table to quickly identify the right rivet for your application.
| Rivet Type | Installation Method | Strength | Best Applications |
| Solid Rivet | Hammer / Rivet Gun | Very High | Aircraft, bridges, heavy structures |
| Blind (Pop) Rivet | Pop Rivet Gun | Low–Medium | Enclosures, appliances, one-side access |
| Button Rivet | Rivet Gun / Hammer | High | Aerospace panels, general metalwork |
| Semi-Tubular Rivet | Press or Roll-Set Tool | Medium | Hinges, automotive, electronics |
| Split / Bifurcated | Wedge Tool / Hammer | Low | Leather, wood, plastics, light use |
| Flush / Countersunk | Rivet Gun | High | Aerospace skins, body panels, surfaces |
| Self-Piercing Rivet | Hydraulic / Servo Press | High | Automotive body, mixed materials |
| Drive Rivet | Hammer | Low | Signs, nameplates, trim, light fixtures |
What Are Rivets Used For? Applications Across Industries
Rivets are used in almost every industry that involves joining materials. They can resist vibrations, are strong when pulled or pushed, and can be used to make joints that last. This makes them the best fastener for many difficult situations. Here are the main ways to use it.
Aerospace & Aviation
The aerospace industry uses more rivets than any other industry. One commercial aircraft has over 1,000,000 rivets. Aluminum rivets and solid rivets are used most often in the skins of the fuselage, the wing panels, and the structural frames of aircraft because they are lightweight yet very strong.
Rivets are important for keeping planes safe because they can resist vibration loosening, which is a constant threat during flight. Flush rivets are used on the outside of a plane to reduce air resistance.
Automotive Manufacturing
The automotive industry uses rivets extensively in body panel assembly, chassis construction, and interior components. Self-piercing rivets have become especially important in modern vehicle manufacturing as automakers increase their use of mixed materials — combining aluminum, high-strength steel, and composites to reduce vehicle weight. SPRs can join these materials without the heat-affected zones created by welding, preserving material properties in safety-critical structures.
Shipbuilding & Marine
Before welding became dominant in the mid-20th century, riveting was the primary method for building ships. Modern shipbuilding still uses rivets in secondary structures, deck fittings, and anywhere that water-tight joints are required. Stainless steel and aluminum rivets are preferred in marine environments due to their corrosion resistance in saltwater exposure.
Construction & Civil Infrastructure
Structural steel rivets were once the dominant fastening method in bridges and buildings, visible in the construction of landmarks such as the Eiffel Tower and the Empire State Building. While high-strength bolts have largely replaced hot rivets in new structural steelwork, rivets remain important in the maintenance and restoration of heritage structures, as well as in lightweight metal building systems, cladding panels, and roofing.
Electronics & Consumer Appliances
Blind rivets and semi-tubular rivets are used throughout the electronics and appliance industries to assemble enclosures, housings, and internal brackets. Their speed of installation is valuable on high-volume production lines. Aluminum and copper rivets appear in circuit board mounting and electrical grounding applications where conductivity matters.
Leather Goods, Textiles & Everyday Products
Split rivets and copper rivets are used in leather goods, denim clothing (jeans pockets), bags, and footwear. The characteristic copper rivets on denim jeans — placed at stress points on pockets — were patented by Levi Strauss in 1873 and remain one of the most recognizable applications of rivets in everyday life. Button rivets and decorative dome-head rivets are also common in furniture and fashion accessories.
Rivets vs. Bolts: What’s the Difference?
The search term ‘rivet bolts’ reflects a common question: when should you choose a rivet, and when should you choose a bolt? Both are fasteners, but they work on fundamentally different principles and suit different scenarios. The table below breaks down the key differences.
| Factor | Rivets | Bolts |
| Joint Type | Permanent — cannot be undone without drilling | Removable — nut can be loosened |
| Vibration | Excellent — heads lock under dynamic loads | Good with locking hardware; may loosen |
| Installation | One-side access possible (blind rivets) | Requires access to both sides |
| Strength | Excellent shear strength | Excellent tensile / clamping strength |
| Cost | Generally lower; minimal tooling | Higher; nuts, washers, torquing tools |
| Disassembly | Not designed for disassembly | Fully re-usable |
| Heat Required | No — cold installation | No — but torque tools needed |
| Best For | Aerospace, shipbuilding, sheet metal joints | Machinery, furniture, assemblies needing service |
The Bottom Line: Rivet or Bolt?
Choose a rivet when: the joint must be permanent, vibration resistance is critical, access to only one side is possible, or you are joining thin sheet materials at high speed.
Choose a bolt when: the assembly needs to be disassembled for servicing, high clamping (tensile) force is the primary requirement, or the load is predominantly tensile rather than shear.
Rivet Materials: Choosing the Right Metal
Rivets are made of different materials, and each material affects how they are used. The type of rivet material affects several things, including the strength, weight, and cost of the rivet. It also affects how well the rivet can resist corrosion and how well it works with the base materials being joined.
Galvanic corrosion, which is caused by different metals touching each other in an electrolyte, is a big concern. The rivet and the workpiece should be compatible materials.
| Material | Key Advantages | Limitations | Common Uses |
| Aluminum | Lightweight, corrosion-resistant, easy to set | Lower strength than steel | Aerospace, electronics, sheet metal |
| Steel | Very high shear & tensile strength | Susceptible to corrosion | Bridges, heavy machinery, structural work |
| Stainless Steel | Strength + excellent corrosion resistance | Higher setting force required | Marine, food processing, outdoor use |
| Copper / Brass | Ductile, electrically conductive, attractive finish | Lower strength, may patina | Electrical grounding, roofing, leather goods |
| Plastic | Non-conductive, lightweight, corrosion-proof | Weak — not for structural loads | Cosmetic assemblies, light-duty fixtures |
Advantages and Disadvantages of Rivets
Advantages
- Permanent and vibration-proof: Riveted joints do not loosen under dynamic or cyclical loads, making them superior to threaded fasteners in high-vibration environments.
- High shear strength: Rivets excel at resisting forces applied perpendicular to the joint axis, which is the dominant load in most sheet metal assemblies.
- One-side installation: Blind rivets require access to only one side of the joint — a major advantage over bolts in enclosed or hard-to-reach assemblies.
- Joins dissimilar materials: Rivets can permanently join materials that cannot be welded, including different metals, or metal with plastic and composites.
- No heat distortion: Unlike welding, riveting is a cold process that does not introduce heat into the workpieces, preserving the material properties of heat-sensitive alloys.
- Affordable and quick: Especially with pneumatic rivet guns on production lines, rivets can be installed extremely rapidly at low cost per joint.
- Easy quality inspection: A properly set rivet is visually obvious; an improperly set one is equally easy to spot and replace.
Disadvantages
- Permanent — difficult to remove: Removing a rivet requires drilling it out, which is time-consuming and risks damaging the base material.
- Two-sided access often required: Solid rivets require access to both faces of the joint; only blind rivets can be installed from a single side.
- Aesthetic impact: Protruding rivet heads (except flush/countersunk types) are visible on the surface, which may be undesirable in consumer-facing products.
- Galvanic corrosion risk: Using a rivet made from a different metal to the base material can create a galvanic cell in the presence of moisture, accelerating corrosion.
- Not ideal for tensile loads: Rivets resist shear forces better than tensile forces; bolts or adhesives may be more appropriate for joints loaded primarily in tension.
How to Select the Right Rivet Size
Choosing the wrong rivet size is a common cause of joint failure. Both diameter and length must be correctly matched to the materials being joined.
Rivet Sizing Rules of Thumb
Rivet Diameter: Should be approximately 3x the thickness of the thickest material being joined.
Rivet Length: Should equal the total combined thickness of all materials being joined, plus 1.5x the rivet diameter (to allow enough tail material to form the shop head).
Example: Joining two 2mm aluminum sheets — use a 6mm diameter rivet with a minimum length of 4mm + 9mm = 13mm.
Frequently Asked Questions About Rivets
Q: What is a rivet? (Simple definition)
A rivet is a permanent mechanical fastener made of a cylindrical shaft with a head at one end. It is inserted through holes in two or more materials, and its tail end is deformed to create a second head — permanently joining the materials together. Unlike bolts, rivets cannot be removed without drilling.
Q: How do rivets work?
A hole is drilled in the materials to be joined. The rivet is inserted so the factory head sits on one side. Mechanical force (from a rivet gun, hammer, or press) deforms the tail end, causing it to expand and flatten into a second head. The two heads clamp the materials permanently from both sides.
Q: What is a button rivet?
A button rivet — also called a dome head or round head rivet — is a rivet with a convex, dome-shaped factory head. The rounded profile distributes load evenly, resists pull-through in thinner materials, and provides a clean finish. Button rivets are widely used in aerospace panels, general metalwork, and structural assemblies, and are available in solid, semi-tubular, and blind configurations.
Q: What is the difference between rivets and bolts?
Rivets create permanent joints; bolts are removable. Rivets excel at resisting shear forces and vibration loosening, while bolts provide greater clamping (tensile) strength and allow disassembly. Blind rivets require access to only one side of the joint; bolts require access to both sides. For applications requiring permanent, vibration-proof joints — such as aircraft, ships, and bridges — rivets are generally preferred.
Q: What is a pop rivet? Is it the same as a blind rivet?
Yes — a pop rivet and a blind rivet are the same thing. ‘Pop rivet’ is the colloquial name, derived from the original POP brand rivet manufactured and popularized during World War II. The trademark is now owned by Stanley. Both terms refer to a hollow rivet with an internal mandrel that is pulled to set the rivet from one side only.
Q: What are rivets used for?
Rivets are used in aerospace (aircraft fuselages, wing panels), automotive (body panels, mixed-material joints), shipbuilding, construction (bridges, cladding), electronics (enclosures, brackets), and everyday consumer goods (leather bags, denim jeans, appliances). Their high vibration resistance and permanent joint quality make them essential in safety-critical applications.
Q: Is ‘rivot’ the correct spelling?
No — the correct spelling is ‘rivet’ (R-I-V-E-T). ‘Rivot’ is a very common misspelling but does not refer to a different product. If you searched for ‘rivot,’ this article on rivets is exactly what you were looking for.
Q: Can rivets be removed and replaced?
Yes, but it is more involved than removing a bolt. A rivet is typically removed by drilling through the head and punching out the shank, or by using a specialized rivet buster tool. Once removed, a replacement rivet of the same specification can be inserted. This is standard practice in aircraft maintenance and bridge restoration.
Q: What material should I choose for my rivets?
Match the rivet material to your application: aluminum for lightweight or corrosion-sensitive applications; steel for maximum strength; stainless steel for marine or outdoor use; copper/brass for electrical grounding or decorative use; plastic for very light, non-structural assemblies. Always consider galvanic compatibility between the rivet and base materials.
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