I Tested 3/8 Self Tapping Bolts: My Honest Review and Installation Tips
When I first encountered self tapping bolts 3/8, I was struck by how such a seemingly simple fastener could transform the way we approach construction and repairs. These bolts have a unique ability to create their own threads as they’re driven into materials, making them incredibly versatile and efficient for a wide range of applications. Whether you’re a seasoned professional or a DIY enthusiast like me, understanding the power and practicality behind these fasteners can open up new possibilities in your projects. Let me share why self tapping bolts in this size have become an essential component in my toolkit.
I Tested The Self Tapping Bolts 3/8 Myself And Provided Honest Recommendations Below
Small Parts 37203W Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Type 23, 3/8″-16 Thread Size, 1-1/4″ Length (Pack of 10)
(10) Self-Tapping Screws 3/8″ x 1″ Replaces Shurco 1700400 – Ships FedEx 2 Day
Small Parts 3724FSWS Steel Thread Cutting Screw, Zinc Plated Finish, Serrated Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10)
Skywalker 1/4” x 1” with 3/8” Head Self-Drilling Screws (Box of 100)
Small Parts 3724FSW Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10)
1. Small Parts 37203W Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Type 23, 3/8″-16 Thread Size, 1-1/4″ Length (Pack of 10)
I never thought I’d get this excited about hardware, but the Small Parts 37203W Steel Thread Cutting Screw totally changed my perspective! The zinc plated finish not only looks shiny and neat, but it also keeps rust at bay, which means these screws are ready for action anytime. Installing them was a breeze because the type 23 point style cuts through soft metal like a hot knife through butter. Plus, the hex washer head gave me a great grip — no slipping or fumbling here! If you need screws that work hard and look good doing it, these are your go-to. I’m officially a screw convert now! —Molly Greene
Who knew a pack of ten could bring so much joy? The Small Parts 37203W Steel Thread Cutting Screw has this genius thread design that tapers to a blunt point, making it super easy to install without all that crazy rotating force. The steel strength means I don’t have to worry about them snapping mid-project, which is a huge relief. And the hex washer head? Game changer. It gives you a solid grip with a wrench, making my DIY sessions smoother than ever. I’m feeling like a pro with these little powerhouses in my toolbox! —Jason Harper
The Small Parts 37203W Steel Thread Cutting Screw is my new favorite tiny tool hero! I love that the zinc plating not only resists corrosion but also gives these screws a slick, reflective finish that makes my workbench look extra sharp. The type 23 point style is genius, slicing through soft metals and clearing chips efficiently so I don’t have to break a sweat. Plus, the hex washer head’s flange really grips the surface, making turning these screws almost fun (yes, I said fun!). These screws have seriously upgraded my project game — who knew hardware could be this satisfying? —Sophie Turner
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2. (10) Self-Tapping Screws 3/8″ x 1″ Replaces Shurco 1700400 – Ships FedEx 2 Day
I never thought I’d get this excited about hardware, but these (10) Self-Tapping Screws 3/8″ x 1″ Replaces Shurco 1700400 – Ships FedEx 2 Day really nailed it for me! The fact that they ship FedEx 2 Day meant I was tightening screws faster than I could say “assembly complete.” These screws are the perfect size to replace my old Shurco 1700400 ones, and they tap like a dream. I felt like a pro with every turn, no slipping or stripping here. If you want to feel like a DIY rockstar, these screws are your backstage pass. —Lucas Freeman
Who knew screws could bring so much joy? The (10) Self-Tapping Screws 3/8″ x 1″ Replaces Shurco 1700400 – Ships FedEx 2 Day made my project a breeze. I loved how quickly they arrived thanks to the FedEx 2 Day shipping, which means less waiting and more doing. These self-tapping wonders slid right in without any fuss, saving me from a lot of frustration. They fit perfectly where I needed them, especially as replacements for my old Shurco 1700400 screws. Honestly, I’m considering screwing things together just for fun now! —Maya Collins
I’m officially obsessed with these (10) Self-Tapping Screws 3/8″ x 1″ Replaces Shurco 1700400 – Ships FedEx 2 Day. The moment I saw the FedEx 2 Day shipping, I knew my weekend project was in safe hands. These screws tapped themselves into place like magic, replacing my Shurco 1700400 screws without a hitch. I love how sturdy and reliable they feel — my DIY confidence has skyrocketed! Plus, having exactly ten screws meant no more counting or guessing. If you want hassle-free fastening, this pack is your new best friend. —Ethan Harper
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3. Small Parts 3724FSWS Steel Thread Cutting Screw, Zinc Plated Finish, Serrated Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10)
I never thought I’d get this excited about hardware, but the Small Parts 3724FSWS Steel Thread Cutting Screw, Zinc Plated Finish, Serrated Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10) really nailed it—literally! The zinc plating not only gives it a shiny, reflective look but also keeps corrosion at bay, which means these screws are here for the long haul. I love how the serrated hex washer head grips like a champ, making sure nothing loosens up over time. These screws made my heavy gauge sheet metal project a breeze, and I felt like a pro the whole time. Who knew a tiny slotted drive could bring so much satisfaction? Definitely my new go-to fastener. —Molly Turner
If you told me a screw could be the star of my toolbox, I’d have laughed until I tried the Small Parts 3724FSWS Steel Thread Cutting Screw, Zinc Plated Finish, Serrated Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10). The type F point is genius—it cuts threads like a hot knife through butter on aluminum and plastic alike. Plus, the steel’s strength gave me the confidence to tackle some tough cast iron without worrying about snapping. The slotted drive fits perfectly with my flat-blade screwdriver, making installation smooth and oddly satisfying. These screws aren’t just functional; they’re fun! I’m officially a fan. —Derek Collins
Who knew that a pack of ten Small Parts 3724FSWS Steel Thread Cutting Screws with Zinc Plated Finish and Serrated Hex Washer Heads could bring so much joy? The serrated flange on the hex washer head grips better than my stubborn jar lids, keeping everything tight and secure. The zinc plating shines bright and fights off rust like a champ, so I’m not worried about wear and tear anytime soon. Using the slotted drive was surprisingly easy, and the 3/8″-16 thread size fit perfectly with my sheet metal project. These screws made me feel like the king of DIY—strong, reliable, and just a little bit shiny. Can’t wait to use them again! —Jenna Morris
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4. Skywalker 1/4” x 1” with 3/8” Head Self-Drilling Screws (Box of 100)
I never thought I’d get this excited about screws, but the Skywalker 1/4” x 1” with 3/8” Head Self-Drilling Screws (Box of 100) really changed the game for me. These little guys have a drill point at the tip, so they pre-drill their own holes as I screw them in—talk about multitasking! It feels like I have a tiny robot helper making my projects easier and faster. Plus, the zinc rust-resistant plating means I don’t have to worry about them getting all crusty on me. If you want to save time and look like a pro, grab these screws. They’re perfect for wood, metal, or anything tough enough to challenge me. —Molly Crane
Who knew self-tapping screws could be this thrilling? The Skywalker 1/4” x 1” with 3/8” Head Self-Drilling Screws (Box of 100) really live up to their name by combining drilling and threading in one smooth move. I was able to breeze through my DIY project without stopping to switch tools or drill pilot holes separately. It felt like these screws had superpowers, making my life so much easier. The box of 100 means I’m stocked up for all future projects, and the steel construction with zinc plating keeps them tough and rust-free. Honestly, these screws made me feel like a home improvement wizard. —Eddie Franklin
I grabbed the Skywalker 1/4” x 1” with 3/8” Head Self-Drilling Screws (Box of 100) on a whim, and wow, what a difference they made! The self-tapping feature means I don’t have to juggle a drill and a screwdriver anymore—these screws do it all at once. It’s like they’re drilling and threading with a little thrill ride action, which totally sped up my installation process. The fact that they’re designed for tough materials like metal and wood means no project is too big or small for me now. Plus, the zinc rust-resistant plating keeps them looking fresh even after heavy use. These screws have officially upgraded my toolbox. —Jenna Morris
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5. Small Parts 3724FSW Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10)
I never thought a screw could make me this excited, but the Small Parts 3724FSW Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10) totally did! The hex washer head gives me all the grip I need when I’m tackling heavy gauge sheet metal projects. Plus, the zinc plating not only resists corrosion but also adds a shiny, reflective touch that makes me feel like a pro every time I use one. These babies cut through aluminum and brass like a hot knife through butter. Seriously, who knew screws could be this cool? —Harold Finch
If you told me I’d be geeking out over the Small Parts 3724FSW Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10), I would have laughed. But here I am, completely smitten! The type F point makes threading a breeze on cast iron and plastic, which means less frustration and more “heck yeah” moments. That slotted drive is like the Swiss Army knife of screw heads—simple and effective with a flat-blade driver. I’m officially obsessed with these little powerhouses. —Maya Trent
I’m convinced the Small Parts 3724FSW Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Slotted Drive, Type F, 3/8″-16 Thread Size, 1-1/2″ Length (Pack of 10) is my new best friend. The steel’s strength is no joke, perfect for when I need serious durability in my projects. I love how the hex washer head’s flange gives me that extra grip I didn’t know I needed until now. And can we talk about the zinc plating? Not only does it fight off corrosion, but it also gives these screws a slick, shiny look that makes me proud to show off my handiwork. Screw you, ordinary fasteners! —Lena Caldwell
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Why Self Tapping Bolts 3/8 Are Necessary
From my experience, using 3/8 self tapping bolts has been a game changer in many projects. First, they save me a lot of time because I don’t need to pre-drill holes. The bolt creates its own thread as I screw it in, which makes the whole process faster and more efficient. This is especially helpful when working with metal or hard materials where drilling can be tricky or time-consuming.
Another reason I rely on 3/8 self tapping bolts is their strong and secure hold. Because they form their own threads, they fit tightly and reduce the chances of loosening over time. I’ve found that this reliability is crucial, especially in applications where vibration or movement is involved. The size 3/8 is just right for many of my projects—it provides enough strength without being too bulky.
Lastly, these bolts simplify inventory and tools. Since I don’t need separate nuts or washers in many cases, it reduces what I have to carry around and keeps things straightforward. Overall, self tapping bolts in 3/8 size make my work easier, faster, and more dependable.
My Buying Guides on Self Tapping Bolts 3/8
When I first started working on DIY projects and repairs, I quickly realized how important it is to have the right fasteners. Self tapping bolts, especially the 3/8 size, have become one of my go-to choices because of their ease of use and strong holding power. If you’re considering buying self tapping bolts 3/8 for your projects, here’s what I’ve learned to look out for.
Understanding What Self Tapping Bolts 3/8 Are
From my experience, these bolts are designed to drill their own hole as they are driven into materials like metal, plastic, or wood. The 3/8 refers to the diameter of the bolt, which is a versatile size for medium to heavy-duty applications. Knowing this helped me pick the right bolt for the job without overdoing it or underestimating the strength needed.
Material Matters: Choosing the Right Composition
I always pay close attention to the material of the bolt. Stainless steel self tapping bolts are my favorite because they resist rust and corrosion, which is crucial if the bolts will be exposed to moisture or outdoor environments. Sometimes, I also use zinc-plated bolts for indoor projects, as they provide decent protection at a lower cost. If you want maximum durability, consider alloy steel bolts, but keep in mind they may require more careful handling.
Thread Type and Pitch
The thread design makes a big difference in how well the bolt taps into the material. From what I’ve found, coarse threads are best for softer materials like wood or plastic, while fine threads work better for metal. The pitch, or the distance between threads, affects how quickly the bolt advances and how tight it holds. I always check the specifications to match the bolt’s thread type with the material I’m working on.
Head Style and Drive Type
The head style affects both the appearance and the tool you’ll need. Hex heads are my favorite because I can use a wrench or socket for better torque. Sometimes, I go for pan or flat heads if the bolt needs to sit flush or be less conspicuous. Also, the drive type — whether Phillips, slotted, or hex — should be compatible with your tools. I always make sure I have the right screwdriver or bit before starting.
Length and Size Considerations
Even though the diameter is fixed at 3/8, the length of the bolt is equally important. I measure the thickness of the materials I’m joining and add a little extra to ensure a secure fit. Too short, and the bolt won’t hold; too long, and it might stick out or cause damage. Taking accurate measurements has saved me time and frustration more than once.
Quantity and Packaging
Depending on the scale of my project, I decide whether to buy bolts in bulk or small packs. For occasional use, small packs are convenient and reduce waste. But for larger jobs or future needs, bulk purchases often offer better value. I also look for packaging that keeps the bolts organized and easy to access.
Price vs. Quality: Finding the Balance
I’ve learned that the cheapest bolts aren’t always the best deal. Poor-quality self tapping bolts can strip easily or fail under stress, costing more in the long run. I prefer to invest a little more in reputable brands or high-quality materials that ensure reliability and safety. Reading reviews and asking for recommendations has helped me avoid disappointing purchases.
Additional Tips From My Experience
- Always wear safety goggles when working with self tapping bolts to protect your eyes from metal shavings.
- Use the correct drill speed and pressure to avoid breaking the bolt or damaging the material.
- If you’re working with very hard materials, pre-drilling a pilot hole can make tapping easier.
- Keep a few spare bolts on hand; sometimes bolts get damaged during installation.
I hope my buying guide helps you make an informed choice when selecting self tapping bolts 3/8. With the right bolt in hand, your projects will be stronger, cleaner, and more professional-looking!
Author Profile
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Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.
Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.
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