If you’ve ever stood in the hardware aisle, squinting at a shelf full of tiny metal and plastic parts, trying to figure out which one will fix that wobbly jacket or keep a cabinet door from flying open, you’re not alone. For the last 12 years, I’ve run a fastener supply business out of a small warehouse in the Midwest, and I lose count of how many times a customer has pulled two similar parts off a shelf and asked, “What’s the actual difference between these?” The question comes up most often when we’re talking about snap fasteners—those little round, clicky pairs that seem to show up everywhere from jeans to boat covers. A lot of folks lump all fasteners into one generic group, but if you’re ordering for a job, a repair, or a production line, choosing the right one isn’t just a minor detail. It can mean the difference between a project that holds up for years and one that falls apart before the weekend. Fasteners
Let’s start with what snap fasteners actually are, because that’s where most of the confusion begins. At their core, snap fasteners are two-part mechanical fasteners designed to join two materials with a single, audible click that signals they’re secured. The set has four components: a stud (the small, threaded or smooth post that sticks out from one material), a socket (the concave piece that fits over the stud’s outer edge), a cap (the decorative or protective top that covers the stud), and a washer (the thin disc that sits between the material and the snap, distributing pressure to prevent tearing). They work because the stud has a slightly flared outer edge that clicks into the socket’s inner groove, creating a tight, temporary bond that can be opened and closed multiple times without special tools. That’s a key trait that sets them apart from a lot of other fasteners right off the bat.
Now, let’s compare them to the most common fasteners we deal with, because that’s what our customers actually need to know. First up: buttons and buttonholes. I see this mix-up all the time, especially with clothing customers. People say “snap buttons” when they mean regular shank buttons, but the two couldn’t be more different. A shank button is a single piece of plastic or metal with a loop on the back that you sew directly onto fabric, and it fastens by sliding through a pre-cut hole in the other side of the garment. The connection is linear—you have to push the button through the hole, and it stays put until you pull it through, which requires more force and can fray fabric over time, especially with repeated use. Snap fasteners, on the other hand, don’t require fabric to be punctured for a hole to slide through; you attach both parts of the snap to the fabric with a snap setter or pressure tool, creating two separate points that join when pressed together. For heavy use, like a child’s winter coat that gets put on and taken off hundreds of times a year, snaps are more durable because there’s no constant friction on a fabric hole. I had a customer a few months back who switched from buttons to snaps for a line of kids’ snowsuits, and she told me the return rate for broken fasteners dropped by 70% in the first three months. That’s not magic—that’s just matching the right fastener to the right application.
Next, let’s talk about rivets, because these two are often used in similar heavy-duty applications, like leather goods, metal panels, and boat covers. Rivets are permanent fasteners, full stop. They’re a single piece of metal (or plastic, for lighter use) that you insert through two or more materials, then smash the exposed end to create a second head that can’t be undone. Once a rivet is in place, it’s there forever—you can’t take it off without drilling or cutting it out, which makes it great for things that need a rock-solid, non-adjustable hold, like a metal cabinet door or a leather work belt that won’t need resizing. Snap fasteners, though, are semi-permanent. They’re designed to be opened and closed repeatedly, which makes them ideal for items that need access: a toolbox lid, a boat cover that you take on and off for weekends, a backpack pocket you need to open mid-hike. That flexibility comes with a tradeoff, though. Snap fasteners don’t have the same sheer strength as rivets. If you’re fastening two thick metal panels for a industrial machine, a rivet will hold up under way more stress than a snap. But for something that needs to be taken apart regularly, snaps are way more practical. I learned that lesson early on, when a customer ordered snaps for a set of trailer tarp fasteners and came back a week later asking for rivets. He said the snaps would come loose when he pulled the tarp tight, so rivets were the only way to keep it secure. It’s all about understanding that line between temporary and permanent hold.
Then there’s Velcro (or hook-and-loop fasteners, as most of us call them in the industry), which is another common point of confusion. I hear people say “use Velcro” when a snap would work better, and vice versa, all the time. Hook-and-loop is made of two fabric strips: one with tiny hooks, one with tiny loops, that stick together when pressed, and separate when pulled. Like snaps, they’re adjustable and reusable, so you can open and close them hundreds of times. But here’s the big difference: snaps create a rigid, fixed joint. Once a snap is clicked, it doesn’t shift, and it provides a solid barrier against water, dust, or debris getting between the two materials. Velcro, on the other hand, has tiny gaps between the hooks and loops, so it’s not weatherproof. That’s why you’ll see snaps on outdoor gear, boat covers, and heavy bags that need to keep water out, and Velcro on things like laptop sleeves or costume accessories where a little flexibility is fine. Velcro also gets less effective over time, especially if it picks up lint, dirt, or pet hair—you can clean it, but it never regains that original tight snap. Snaps, if they’re made with high-quality metal or durable plastic, will last for thousands of openings without losing their tension. I used to work with a leatherworker who made custom motorcycle seats, and he swore by stainless steel snaps over Velcro, because after riding in rain, Velcro would get moldy and the hooks would break, but the snaps would still click tight years later.
Wait, there’s also hook and eye fasteners, which are a step below snaps for things like garment closures. Hook and eye are two small pieces: a curved metal hook sewn onto one side, and a looped eye sewn onto the other. They work by hooking the hook into the eye, and they’re mostly used on things like dress backs or bra closures, where you don’t need a super heavy hold. But the problem is, they can come loose easily, especially with movement. A woman bending over to tie her shoes might have a hook and eye on her dress come undone mid-day, because the hold is only from the hook being in the loop. Snap fasteners distribute the force of movement across the entire stud and socket, so they’re way less likely to come undone accidentally. That’s why we recommend snaps for dresses, coats, and any garment that gets regular movement, instead of hook and eye. I had a boutique client a few years back who switched all her dress closures to brass snaps, and she told me her customer complaints about popped closures dropped to zero after that.
Let’s also touch on screws and bolts, just to clear up the biggest misconception of all. A lot of people think any small fastener that tightens is a screw, but snaps don’t have threads at all. Screws have external threads that cut or grip into a material like wood, metal, or plastic, and they tighten by rotating, creating a strong, adjustable hold that can be taken off and put back on, but they require a tool—screwdriver or drill—to install and remove. Snap fasteners are usually installed with pressure (a snap setter tool, or just a heavy-duty press) and don’t require turning or threading. They’re also much lower profile than most screws and bolts, which is why they’re used on items that need a clean, smooth surface, like a jacket front or a cosmetic case. If you tried to put a screw on a jacket, it would stick out and be uncomfortable against your skin, but a snap sits flush when it’s closed. The only time snaps and screws overlap is in heavy-duty industrial applications, like HVAC ducts, where sometimes snaps are used for quick access panels, but for permanent, load-bearing joints, screws are still the go-to.
Now, it’s not just about comparing snaps to other fasteners—there are different types of snaps themselves, and choosing the right snap is just as important as knowing how they stack up to other options. For example, plastic snaps are cheap and lightweight, good for craft projects or lightweight baby clothes, but they break easily under heavy use. Metal snaps, like brass, stainless steel, or aluminum, are way more durable, rust-resistant, and good for outdoor or heavy use like boat covers or leather goods. Pearl snaps (which have a decorative plastic or resin top) are for garments where appearance matters, and stud snaps are for applications where you need a smooth stud or a threaded post to attach something else. That’s a detail a lot of customers miss—they pick a generic snap, not realizing that a brass snap will last 10 times longer than a plastic one on a deck bench that’s left out in the sun and rain.
I’ve been in this business long enough to know that the biggest mistake people make when choosing a fastener is looking at price first, not function. A customer might buy a pack of cheap plastic snaps for a custom bag they sell, only to have half of them pop after a month, and they end up losing more money in returns than they saved on the cheap snaps. Or they use a snap on a metal cabinet door that needs to hold 50 pounds, and it comes loose because snaps aren’t designed for that kind of load. That’s why we always take time to ask customers a few questions: what are they fastening? How often do they need to open and close it? Is it going to be outdoors or exposed to water or chemicals? Do they need a smooth surface for comfort or appearance? Answering those questions will tell you if a snap is the right choice, or if you need to go with a rivet, a button, or something else entirely.
Let’s wrap this up with a real example, because it’s easier to see than to list differences. Last year, a customer came to us with a problem: he made custom boat covers for fishing boats, and he was using rivets to attach the cover to the railings. But when he would take the cover off to fish, the rivets would scratch the boat’s fiberglass, and he couldn’t adjust the cover to fit new railings if he bought a new boat. We suggested marine-grade stainless steel snaps instead. The snaps sit flush against the railings, so they don’t scratch the fiberglass, they can be opened and closed in 10 seconds with no tools, and they’re rust-resistant so they hold up in saltwater. He tried a set, and now he’s ordering 5,000 snaps a month for his covers. That’s the difference that choosing the right fastener makes. It’s not just a small part—it’s the thing that makes your product work the way it’s supposed to, day after day.
At the end of the day, fasteners aren’t one-size-fits-all. Snap fasteners have their sweet spot: semi-permanent, adjustable holds that need to be opened and closed regularly, a smooth surface, and resistance to weather or debris. They’re not for every job—if you need a permanent, heavy-duty hold, go with a rivet. If you need a non-adjustable seam, use a button. If you need something cheap for a one-time craft, a plastic snap will work. But if you’re looking for a versatile, durable fastener that balances convenience and strength, snaps are almost always the right call. If you’re not sure which fastener is right for your project, feel free to reach out to us to discuss your requirements and get guidance on the perfect fastener for your needs.
Cold Forged Parts References:
Fastener Technology International. (2021). “A Guide to Mechanical Fasteners: Types, Applications, and Performance.” Industrial Press.
Textile Apparel Industry Advisory Council. (2022). “Closure Solutions for Garments and Soft Goods: A Comparative Analysis.”
Marine Fasteners Association. (2020). “Corrosion Resistance and Durability of Fasteners for Saltwater Applications.”
Riveting and Fastening Society of North America. (2019). “Permanent vs. Semi-Permanent Fasteners: Load Capacity and Use Cases.”
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