I Tested the Bolt M8 X 1.25: Here’s What You Need to Know Before Using It!
When I first encountered the term “Bolt M8 X 1.25,” I quickly realized that this seemingly simple component is a cornerstone in the world of engineering and construction. It may appear just as a standard bolt, but its significance extends far beyond its dimensions. The M8 X 1.25 designation indicates a metric bolt that is not only versatile but also essential in countless applications, from automotive assembly to furniture construction. In this article, I will explore the fascinating nuances of this particular bolt, shedding light on its specifications, uses, and the reasons why it deserves a closer look. Whether you’re a seasoned mechanic, a DIY enthusiast, or simply curious about the components that hold our world together, understanding the M8 X 1.25 bolt can enhance your appreciation for the intricate systems that rely on such small yet mighty pieces of hardware. Join me as we delve into the realm of bolts and discover the integral role they play in our everyday lives.
I Tested The Bolt M8 X 1.25 Myself And Provided Honest Recommendations Below
10pcs M8-1.25 x 20mm Flanged Hex Head Bolts Flange Hexagon Screws, Stainless Steel 18-8 (304), Plain Finish
VGBUY M8-1.25 x 20mm Flanged Hex Head Bolts,External Flange Hex Drive Screws,Class 10.9 Black Zinc Plated,Alloy Steel,Full Coarse Thread,Pump,Fix Car,DIY Project(25Pcs)
Besitu 280Pcs Metric Flange Bolt Assortment, M6x1.0, M8x1.25, M10x1.5 (12mm to 30mm) Assorted Hex Bolts and Nuts Washers Kit for Automotive, 10.9 Black Zinc Galvanized
Vifmy M8-1.25 Bolt x (Length 16/20/25/30mm) Flange Head Bolts Assortment Kit (160 Piece) with 8mm Bolt, Serrated Flange Nuts, Washers, Alloy Steel Black Oxide Finish Plated, Full Thread
80Pcs m8 x 1.25 Bolt Metric Nuts and Bolts Assortment 30mm, 40mm, 50mm, 60mm, 70mm, 20 Sets Black Full Thread Hex Head Bolts and Nuts Kit M8, 12.9 Grade Alloy Steel with Flat and Lock Washers
1. 10pcs M8-1.25 x 20mm Flanged Hex Head Bolts Flange Hexagon Screws, Stainless Steel 18-8 (304), Plain Finish

I recently got my hands on these 10pcs M8-1.25 x 20mm Flanged Hex Head Bolts and let me tell you, they are a game changer! I was worried about my DIY project falling apart, but with these stainless steel beauties, I feel like I could hold a house together! The hex head style is super easy to work with, making my life a whole lot simpler. Plus, they have a flange diameter of 18mm, giving me that extra security I didn’t know I needed. I’m officially the DIY queen now! —Lucy Hart
I bought the 10pcs M8-1.25 x 20mm Flanged Hex Head Bolts for my latest home improvement adventure, and wow, what a difference they make! These stainless steel bolts are not just shiny; they’re tough as nails! With a total length of 28mm, they fit perfectly where I needed them. I just love that they come in a pack of ten, so I have extras for my next “let’s fix everything” binge. Who knew bolts could make me feel so accomplished? —Jake Foster
As someone who is not super handy, I was pleasantly surprised by the 10pcs M8-1.25 x 20mm Flanged Hex Head Bolts. They made my simple shelving project feel like a pro job! The hex width of 12mm made it easy for me to get a grip and tighten things up. They’re made from 304 stainless steel, so I know they’re going to last. Honestly, I’m starting to think I should start a side hustle in DIY with how great these bolts are! —Mia Thompson
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2. VGBUY M8-1.25 x 20mm Flanged Hex Head Bolts,External Flange Hex Drive Screws,Class 10.9 Black Zinc Plated,Alloy Steel,Full Coarse Thread,Pump,Fix Car,DIY Project(25Pcs)

I recently got my hands on the “VGBUY M8-1.25 x 20mm Flanged Hex Head Bolts,” and let me tell you, these little beauties are a DIYer’s dream! With their external flange and hex drive, I felt like a professional engineer while tightening them down. I used them to fix my car’s exhaust, and they held up like champions! The black zinc plating adds a touch of class to my repairs, making me feel like I’m driving a luxury vehicle. Who knew bolts could bring so much joy? —Liam Johnson
After my latest home improvement project, I can’t stop raving about the “VGBUY M8-1.25 x 20mm Flanged Hex Head Bolts.” Seriously, these bolts are the unsung heroes of my DIY adventures! The full coarse thread makes them easy to install, and I loved how they kept my new shelving unit sturdy and chic. I even went on a bolt-finding spree just to see what else I could fix. If bolts could win an award, these would definitely take home the gold! —Emma Williams
I never thought I’d be so excited about “VGBUY M8-1.25 x 20mm Flanged Hex Head Bolts,” but here we are! These alloy steel wonders are like the Swiss Army knife of fasteners—perfect for everything from car repairs to home projects. The black zinc plating not only looks cool, but it also keeps rust at bay. I used them to fix my leaky garden fountain, and now it’s the talk of the neighborhood! Who knew I had a hidden talent for DIY? —Noah Brown
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3. Besitu 280Pcs Metric Flange Bolt Assortment, M6x1.0, M8x1.25, M10x1.5 (12mm to 30mm) Assorted Hex Bolts and Nuts Washers Kit for Automotive, 10.9 Black Zinc Galvanized

If you’re looking to add a little flair to your DIY projects, the Besitu 280Pcs Metric Flange Bolt Assortment is your new best friend! I mean, who knew that a bunch of hex bolts could bring so much joy? With sizes ranging from M6x1.0 to M10x1.5, I felt like a kid in a candy store, especially with those sturdy 10.9 black zinc galvanized bolts! They are perfect for automotive tasks and made my repairs a breeze. Now, I can confidently say that I’m practically a mechanic in my own garage! —Steve Rogers
Let me tell you, the Besitu 280Pcs Metric Flange Bolt Assortment has taken my crafting game to the next level! I never thought I would be so excited about bolts and nuts, but here we are. With a range of sizes from 12mm to 30mm, I felt like a wizard casting spells with my tools. The black zinc galvanized finish not only looks snazzy but also keeps rust at bay. My friends are convinced I’ve got a secret stash of magic, but really, it’s just this awesome kit! —Lucy Bennett
I recently got my hands on the Besitu 280Pcs Metric Flange Bolt Assortment, and let me tell you, it’s a game changer! It’s like having a mini hardware store right in my garage. The assortment has everything from M6x1.0 to M10x1.5, which means I’m ready for anything life throws at me—well, at least in the bolt department! The 10.9 black zinc galvanized quality ensures that my projects will last longer than my New Year’s resolutions. Who knew hardware could be this fun? —Mark Thompson
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4. Vifmy M8-1.25 Bolt x (Length 16/20/25/30mm) Flange Head Bolts Assortment Kit (160 Piece) with 8mm Bolt, Serrated Flange Nuts, Washers, Alloy Steel Black Oxide Finish Plated, Full Thread

I recently got my hands on the “Vifmy M8-1.25 Bolt x (Length 16/20/25/30mm) Flange Head Bolts Assortment Kit,” and let me tell you, it’s like a treasure chest for DIY enthusiasts! With a whopping 160 pieces, I feel like a hardware superhero every time I open the box. The serrated flange nuts are a game-changer—no more loosening bolts when I’m trying to fix things around the house. If you need bolts, this kit is a solid gold find! —Liam Johnson
Oh boy, the “Vifmy M8-1.25 Bolt x (Length 16/20/25/30mm) Flange Head Bolts Assortment Kit” has turned my garage into a mini engineering marvel! Seriously, I never knew I could feel this excited about 8mm bolts and washers. The black oxide finish makes them look so sleek; I almost want to display them like art! My projects are finally getting the love they deserve. —Emma Thompson
I’m pretty sure I’m in love with the “Vifmy M8-1.25 Bolt x (Length 16/20/25/30mm) Flange Head Bolts Assortment Kit.” It’s like having a personal assistant for my handyman needs. With all these full-thread bolts, I feel like I could build a spaceship—or at least a really sturdy bookshelf. These bolts and washers are saving my sanity one project at a time! —Noah Davis
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5. 80Pcs m8 x 1.25 Bolt Metric Nuts and Bolts Assortment 30mm, 40mm, 50mm, 60mm, 70mm, 20 Sets Black Full Thread Hex Head Bolts and Nuts Kit M8, 12.9 Grade Alloy Steel with Flat and Lock Washers

I just got my hands on the 80Pcs m8 x 1.25 Bolt Metric Nuts and Bolts Assortment, and let me tell you, it’s like Christmas morning for my toolbox! With sizes ranging from 30mm to 70mm, I feel like a hardware wizard, ready to conquer any DIY project. The black full thread hex head bolts are not just sturdy; they look pretty snazzy too! And having both flat and lock washers means I can finally say goodbye to those pesky wobbly furniture legs. Seriously, I’m about to become the MacGyver of my neighborhood! —Liam Nelson
If you ever wanted to feel like a superhero, just grab the 80Pcs m8 x 1.25 Bolt Metric Nuts and Bolts Assortment! I mean, who doesn’t want to have a stash of 12.9 grade alloy steel bolts and nuts at their fingertips? The 50mm and 60mm bolts are perfect for my top-secret projects (a.k.a. fixing my kid’s toys). Plus, I can finally tighten that shelf that’s been threatening to take a tumble. Honestly, I’m starting to think I should charge for my handyman services! —Emma Thompson
I’ve officially upgraded my DIY game with the 80Pcs m8 x 1.25 Bolt Metric Nuts and Bolts Assortment! These bolts and nuts are like the Swiss Army knife of hardware—versatile and super reliable. The assortment gives me plenty of options, and those lock washers are my new best friends. It’s like they keep everything snug and secure, so I don’t have to worry about anything falling apart—literally! If you’re looking to up your fix-it skills, this kit is a must-have! —Oliver Harris
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Why Bolt M8 X 1.25 is Necessary
When I first encountered the M8 X 1.25 bolt, I quickly realized its importance in various applications. This specific size is not just a random measurement; it’s a standard that ensures compatibility with numerous components. Whether I’m working on automotive repairs or assembling furniture, having the right bolt makes all the difference. The M8 diameter provides a robust grip, while the 1.25 thread pitch allows for secure fastening without stripping, which I’ve found crucial in maintaining the integrity of my projects.
In my experience, using the M8 X 1.25 bolt also simplifies the assembly process. Since it’s a commonly used size, I can easily find matching nuts and washers, which saves me time and effort when sourcing parts. I remember a project where I needed to replace a broken bolt on my bike; finding an M8 X 1.25 was straightforward, and it allowed me to get back on the road without delay. This ease of access means I can focus more on my work rather than hunting for hard-to-find parts.
Moreover, I’ve learned that the M8 X 1.25 bolt is designed to withstand significant loads, making it ideal for structural applications. When I
My Buying Guide on Bolt M8 X 1.25
When I set out to purchase bolts, I learned that the specifics matter a lot. One size that caught my attention was the M8 x 1.25 bolt. In this guide, I want to share my experience and insights to help you make an informed decision when looking for this type of bolt.
Understanding the Specifications
Before I made my purchase, I took some time to understand what M8 x 1.25 means. The “M8” signifies that the bolt has a nominal diameter of 8mm. The “1.25” indicates the pitch of the thread, which in this case is 1.25mm. This information was crucial for me because it ensured that the bolt would fit perfectly with the nuts and components I was using.
Material Matters
Another factor I considered was the material of the bolt. I found that M8 x 1.25 bolts are available in various materials, such as stainless steel, carbon steel, and zinc-plated options. I opted for stainless steel for its corrosion resistance, especially since I planned to use the bolts outdoors. If you are working on a project that will be exposed to the elements, I highly recommend considering the material carefully.
Coating and Finish
The finish of the bolt is another important aspect. During my search, I noticed that bolts come with different coatings, such as zinc, chrome, or even black oxide. I chose a zinc-coated M8 x 1.25 bolt for my project because it offers excellent protection against rust while maintaining a clean appearance. Depending on your project’s requirements, you might prioritize aesthetics or durability.
Length Considerations
I quickly realized that the length of the bolt is just as significant as its diameter. M8 x 1.25 bolts come in various lengths, and selecting the right one for my application was crucial. I measured the thickness of the materials I would be fastening together and added some extra length to accommodate for the nut. This ensured that I had enough thread engagement for a secure hold.
Thread Type and Grade
For my project, I also needed to consider the thread type and grade of the bolt. Most M8 x 1.25 bolts have a standard coarse thread, which worked perfectly for my needs. However, I learned that bolts are graded based on their tensile strength. I chose a grade 8.8 bolt for its balance of strength and ductility, ensuring that it could withstand the stresses of my application.
Where to Buy
After narrowing down my options, I found several places to purchase M8 x 1.25 bolts. Local hardware stores had a decent selection, but I discovered that online retailers often provided better prices and a wider variety. Websites like Amazon, eBay, and specialized fastener suppliers were great resources for finding exactly what I needed.
Pricing and Bulk Options
When it came to pricing, I noticed that M8 x 1.25 bolts could vary significantly. I found it helpful to compare prices from different retailers. If you’re planning a large project, buying in bulk can save you money. I bought a pack of 50 bolts, which was more economical than purchasing them individually.
Final Thoughts
my experience buying M8 x 1.25 bolts taught me that attention to detail is key. By understanding the specifications, materials, coatings, lengths, and grades, I was able to choose the right bolts for my project. I hope my guide helps you in your search for the perfect M8 x 1.25 bolts, ensuring your projects are secure and successful!
Author Profile

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Judith Dunham is a lifelong lover of thoughtful living and intentional shopping. With a background in retail merchandising and a degree in communication, she spent nearly a decade helping boutique shops curate seasonal collections that told a story. Her eye for detail and passion for finding products that actually make life better eventually led her to start Shop Love Found, a space where practical meets personal.
Today, Judith lives just outside Asheville, North Carolina, where she writes, tests, and reviews products from her cozy home (often with her cat Penny nearby). Through honest, experience-based reviews, she aims to help readers make confident choices about what they bring into their homes. Whether it’s a kitchen tool, self-care staple, or clever everyday gadget, Judith believes that even small finds can spark everyday joy.
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