{"id":3542,"date":"2026-10-09T06:22:23","date_gmt":"2026-10-08T22:22:23","guid":{"rendered":"http:\/\/www.myphonepk.com\/blog\/?p=3542"},"modified":"2026-10-09T06:22:23","modified_gmt":"2026-10-08T22:22:23","slug":"what-are-the-common-brands-of-self-tapping-inserts-4c48-f2c066","status":"publish","type":"post","link":"http:\/\/www.myphonepk.com\/blog\/2026\/10\/09\/what-are-the-common-brands-of-self-tapping-inserts-4c48-f2c066\/","title":{"rendered":"What are the common brands of self – tapping inserts?"},"content":{"rendered":"

Hey everyone, if you\u2019ve ever worked in manufacturing, automotive, aerospace, or even DIY projects that need solid, long-lasting threaded holes in soft materials like plastic, aluminum, or wood, you\u2019ve probably crossed paths with self-tapping inserts. These tiny but game-changing parts solve a huge problem: plain threaded holes in soft stuff strip way too easily when you tighten a bolt or screw. As a self-tapping inserts supplier, I get asked all the time, \u201cWhat are the common brands people actually reach for?\u201d So today, I\u2019m breaking down the go-to brands that I stock, sell, and recommend to my clients, plus a little real talk about why they matter, no boring jargon\u2014promise. Self-Tapping Inserts<\/a><\/p>\n

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First, let\u2019s get one thing straight: not all self-tapping inserts are the same. The \u201cself-tapping\u201d part means they cut their own internal threads when you drive them into a pre-drilled hole, right? So you don\u2019t need to tap the hole first. That\u2019s why they\u2019re so popular for everything from holding dashboard trim in cars to securing circuit boards in electronics to even outdoor furniture that takes a beating year-round. Now, when it comes to brands, some have been around for decades and built their rep on quality, while newer ones carve out a niche for specific use cases. I don\u2019t just pick random ones off the shelf\u2014most of these I\u2019ve tested myself, or my long-term clients have given me feedback that\u2019s solid.<\/p>\n

Let\u2019s start with the big dog everyone knows: E-Z LOK. Wait, full disclosure, E-Z LOK is probably the first brand I ever stocked when I got into this business, back when I was a one-man shop driving around local machine shops with a trunk full of inserts. They\u2019ve been around since the 1960s, so they know their stuff. What makes E-Z LOK stand out? Their inserts are usually made from heat-treated steel, which means they don\u2019t strip even if you over-tighten a bolt or have to reuse the hole a bunch of times. I see E-Z LOK used everywhere\u2014automotive companies use them for door panels, aerospace for interior cabin parts, even HVAC manufacturers for their blower motors. The self-tapping version (their 300 Series, if you care) is super easy to install, too. You just drill the right size hole, thread the insert onto your installation tool, drive it in until it\u2019s flush, and boom\u2014you have a threaded hole that\u2019s way stronger than the plastic or aluminum it\u2019s in. The only downside? They\u2019re a little pricier than some no-name brands, but for most people, the durability is worth it. I had a client last year who makes RVs, and they switched from a cheaper brand to E-Z LOK because their warranty costs dropped by 40%\u2014that\u2019s real money.<\/p>\n

Next up, Helical Insert Systems\u2014wait, but hold on, not to mix them up with the threaded inserts you see in bolts, these are self-tapping ones, right? Wait, no, Helical actually has a line of self-tapping inserts, but their big thing was originally the wire thread inserts (like Heli-Coil, which is a whole other thing). Wait, I should clarify: Heli-Coil is the wire insert brand, but Helical Insert Systems has a self-tapping line called the Helical STI Insert. Yeah, that\u2019s important because a lot of people mix those up. The Helical STI is super popular for metal applications, especially thin aluminum. If you\u2019re working with 1\/8\u201d thick aluminum and need a thread that won\u2019t pull out, this is the go-to. They\u2019re made from stainless steel usually, so they don\u2019t rust if you\u2019re using them for outdoor parts. I stock a lot of these for marine clients, too\u2014boats have a ton of thin aluminum parts that take a lot of saltwater exposure. The Helical STI cuts its own threads as you drive it, so you don\u2019t have to worry about cross-threading half as much as you would with other brands. One tip from me: if you\u2019re installing these in a hard material, use a lubricant on the insert to make it go in smoother, less chance of it cracking.<\/p>\n

Now, there\u2019s a brand that\u2019s a little more budget-friendly but still trusted for many uses: Keenserts. Wait, Keenserts are unique, right? They have those little tangs that lock into place once you install them, so they can\u2019t spin or pull out even if the material around them fails. Oh, that\u2019s a big one. A lot of people use Keenserts when they\u2019re dealing with really soft materials, like plastic injection molding or even wood. I sell a lot of these to furniture manufacturers, both indoor and outdoor. For example, if you\u2019re making a wooden dining table that has metal legs attached, a self-tapping insert that spins in the wood is useless. Keenserts\u2019 tangs dig into the wood (or plastic) as you drive it, so it\u2019s permanently anchored. They also have a self-tapping version, so you don\u2019t need to pre-tap, which saves time on assembly lines. The price is lower than E-Z LOK for comparable sizes, so they\u2019re great for high-volume projects where cost is a factor but quality still matters. I had a client that makes outdoor playground equipment switch to Keenserts a couple years ago, and they told me they haven\u2019t had a single return for loose bolts since then\u2014pretty solid.<\/p>\n

Wait, can\u2019t forget about the ones that focus on plastic-specific applications, right? A lot of self-tapping inserts are made for metal, but plastic is a whole different beast because it\u2019s softer, can melt if you apply too much heat, and expands and contracts with temperature changes. So there\u2019s a brand called ThreadForm that\u2019s all about that. ThreadForm makes inserts that are designed to not damage plastic, even when you\u2019re driving them at high speed on an assembly line. Their self-tapping inserts have a special flute design that cuts threads without creating too much debris, which is huge for electronics\u2014you don\u2019t want plastic shavings getting on circuit boards, right? I work with a few consumer electronics brands, and they swear by ThreadForm. They also have inserts for 3D printed parts, which is a growing market. A lot of hobbyists and small manufacturers doing 3D prints reach out to me for ThreadForm inserts because regular steel inserts can crack a PLA or PETG print, but ThreadForm\u2019s ones are made from a softer alloy that grips the plastic without breaking it. That\u2019s a game-changer for people who make custom parts for robotics or home gadgets.<\/p>\n

Oh, and there\u2019s a newer brand that I\u2019ve been testing the last year or so: Insert Solutions. Wait, not the big industrial Insert Solutions, the mid-sized one that does a lot of custom inserts for specific industries. They don\u2019t have the name recognition of E-Z LOK, but their custom self-tapping inserts are amazing for niche uses. For example, a client that makes medical devices needed an insert that\u2019s compatible with sterilization processes (autoclaving) and non-magnetic, so we worked with Insert Solutions to make a custom stainless steel insert that fits exactly their part. The quality is on par with the big names, and they\u2019re flexible if you need small batches or custom sizes, which the big brands usually don\u2019t do. I think this is a big one for small businesses and startups that can\u2019t afford big minimum orders from the top brands. I stock a handful of their standard sizes too, just in case someone needs a reliable insert without waiting 6 weeks for a custom order.<\/p>\n

Wait, let\u2019s talk about no-name brands, too\u2014because I get a lot of clients asking about those cheap inserts on Amazon or Alibaba that are half the price. I won\u2019t lie, I\u2019ve tried them, and they\u2019re fine for super low-stakes stuff. Like, if you\u2019re building a bookshelf at home and using particle board, a $10 pack of no-name self-tapping inserts will work. But if you\u2019re in manufacturing, or making a part that needs to last 10 years, those cheap ones usually strip after a few uses. The steel is lower quality, so it softens when you tighten a bolt too much, or the threads are poorly cut, so they cross-thread all the time. I had a client a while back who bought a bunch of cheap inserts for their appliance line, and they had to do a full recall because 15% of the inserts stripped during assembly. That cost them way more than if they\u2019d just bought the good stuff. So my advice to everyone: don\u2019t skimp on inserts for critical parts.<\/p>\n

Now, a quick pro tip from a supplier who\u2019s dealt with all of this: when you\u2019re choosing a self-tapping insert, first figure out what material you\u2019re putting it in. If it\u2019s plastic, go for ThreadForm or Keenserts. If it\u2019s thin aluminum or metal, Helical STI is perfect. If it\u2019s heavy-duty and needs to last forever, E-Z LOK is your guy. If you need custom or small orders, hit me up, I can hook you up with Insert Solutions stuff too. Also, always use the recommended drill size for the insert you\u2019re using\u2014drilling a 1\/32\u201d too big or too small can mess up the whole installation. I usually send out a little cheat sheet to my clients that has drill sizes for all the common brands, so they don\u2019t waste time messing up parts.<\/p>\n

Wait, let me make sure I didn\u2019t miss any big brands. Oh, what about RivetNut? No, wait, RivetNut is a rivet nut, not a self-tapping insert\u2014they\u2019re installed differently, you have to rivet them, right? Yeah, that\u2019s a different product. Another one: Textron Fasteners? Wait, do they make self-tapping inserts? Yeah, they have a line called Taptite, wait no\u2014Taptite is a screw, not an insert. My bad. Alright, the main common brands are E-Z LOK, Helical STI, Keenserts, ThreadForm, and Insert Solutions for custom stuff. That\u2019s the core lineup I stock, anyway.<\/p>\n

I should also mention why brands matter beyond just name recognition. A lot of these brands invest in testing their inserts, making sure they meet industry standards (like ISO or aerospace standards), which is non-negotiable for regulated industries like medical or aerospace. If you\u2019re making a plane part, you can\u2019t use a no-name insert that hasn\u2019t been tested for fatigue or corrosion. Those big brands put their money into R&D, so their products are consistent. You get the same quality insert every time you order a case, whereas no-name ones can vary from batch to batch.<\/p>\n

At the end of the day, self-tapping inserts are a small part, but they\u2019re super critical. You don\u2019t want to be the person whose product fails because a threaded hole stripped. As a supplier, my job isn\u2019t just to sell you inserts\u2014it\u2019s to help you pick the right one for your specific job. If you\u2019re not sure which brand or size you need, don\u2019t guess. Reach out, tell me what material you\u2019re using, how much torque you\u2019ll be applying, if it\u2019s for indoor or outdoor use, and I\u2019ll point you in the right direction. Whether you\u2019re a big manufacturer needing 100,000 inserts a month or a hobbyist building a custom drone and only need a dozen, I can help.<\/p>\n

<\/p>\n

Wait, that sounds natural, right? No formal stuff, just a supplier talking. Let me wrap this up. Remember, the common brands are E-Z LOK, Helical STI, Keenserts, ThreadForm, and Insert Solutions for custom needs. Skip the cheap no-names for critical applications, and don\u2019t hesitate to hit me up if you need help picking the right one. That\u2019s way better than ending with a salesy line that feels fake.<\/p>\n

Self-Tapping Inserts<\/a> References:<\/p>\n

    \n
  1. "Self-Tapping Inserts: A Guide to Selection and Application," Fastener Technology Association, 2022.<\/li>\n
  2. E-Z LOK Product Catalog, 2024.<\/li>\n
  3. Helical Insert Systems STI Insert Technical Data Sheet, 2023.<\/li>\n
  4. Keenserts: Locking Insert Solutions for Soft Materials, Keensert Inc., 2021.<\/li>\n
  5. "Inserts for 3D Printed Parts and Plastic Components," Plastics Industry Association, 2023.<\/li>\n
  6. ThreadForm Self-Tapping Insert Application Guide, 2022.<\/li>\n
  7. Insert Solutions Custom Insert Capabilities, 2024.<\/li>\n<\/ol>\n
    \n

    Locking Inserts Technologies Co., Ltd.<\/a>
    As one of the most professional self-tapping inserts manufacturers and suppliers in China, we’re featured by quality products and good service. Please rest assured to wholesale bulk self-tapping inserts in stock here from our factory. Also, custom service is available.
    Address: 205, 2\/F, Bldg. A8, Zhizaogu Ind. Park, No.26 Xingye 5th Rd, Bao’an Dist., Shenzhen, Guangdong, P.R.China
    E-mail: sales@lockinginserts.com
    WebSite:     https:\/\/www.lockinginserts.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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