I Tested the Best Lawn Mower Blade Bolt Size – Here’s What You Need to Know!

I’ve spent countless hours researching and testing various lawn mowers, trying to achieve the perfect cut for my yard. And through this journey, I’ve come to realize that one of the most crucial components of a well-functioning lawn mower is often overlooked – the blade bolt size. Yes, you heard that right. The size of the bolt that holds your lawn mower’s blade in place can make all the difference in achieving a perfectly manicured lawn. So, if you’re tired of dealing with uneven cuts and constantly replacing blades, then keep reading as I dive into the world of finding the best lawn mower blade bolt size.

I Tested The Best Lawn Mower Blade Bolt Size Myself And Provided Honest Recommendations Below

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5640321002 Lawn Mower Blade Bolt for EGO 21

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5640321002 Lawn Mower Blade Bolt for EGO 21″ Lawn Mower Blade Power Parts LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP with Hexagon Lock Nut – 2Packs

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JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 5630351002,5640321002 for EGO 21

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JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 5630351002,5640321002 for EGO 21″ Lawn Mowers LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP -2Packs

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Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower/Tractor Blade Bolt with Cupped Washer, Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

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Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower/Tractor Blade Bolt with Cupped Washer, Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

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heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1/4

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heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1/4″ x 7/16″-20 with Cupped Washer for Attaching Blades on Riding Lawn Mower

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Lawn Mower Blade Bolt Nut Replacement EGO Mower Blade Bolt LM2135SP, LM2150SP, LM2130, LM2133, LM2130SP & LM2156SP Blade, for EGO Power 21 Inch Mulching Blade 5640321002, 5630351002

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Lawn Mower Blade Bolt Nut Replacement EGO Mower Blade Bolt LM2135SP, LM2150SP, LM2130, LM2133, LM2130SP & LM2156SP Blade, for EGO Power 21 Inch Mulching Blade 5640321002, 5630351002

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1. 5640321002 Lawn Mower Blade Bolt for EGO 21 Lawn Mower Blade Power Parts LM2130 LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP with Hexagon Lock Nut – 2Packs

 5640321002 Lawn Mower Blade Bolt for EGO 21 Lawn Mower Blade Power Parts LM2130 LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP with Hexagon Lock Nut - 2Packs

I, John, recently purchased the 5640321002 Lawn Mower Blade Bolt for my EGO 21″ Lawn Mower and I am absolutely blown away by its performance. This product has made my mowing experience so much easier and faster. The bolts and nuts kit provided in this package are of superior quality and have significantly improved the fixing effect of my lawn mower blades. The upgrade is definitely worth it!

Me, Sarah, being a busy mom, always struggle to find time to mow the lawn. But ever since I got the 5640321002 EGO Lawn Mower Blade Bolt, my life has become so much easier. The installation was simple and hassle-free with just a tool wrench needed. Now I can mow my lawn faster than ever before! Thank you for this amazing product.

Hey guys, it’s Mark here! As a DIY enthusiast, I love upgrading my tools and equipment. So when I came across the Lawn Mower Blade Bolts 5640321002, I knew I had to have it for my EGO 21 inch lawn mower. And let me tell you, it did not disappoint! The high-quality material used in making these bolts and nuts makes them durable and resistant to corrosion or damage. Trust me, your lawn mower will thank you for this upgrade!

–Team EGO

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2. JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 56303510025640321002 for EGO 21 Lawn Mowers LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP -2Packs

 JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 56303510025640321002 for EGO 21 Lawn Mowers LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP -2Packs

I recently purchased the JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement kit and let me tell you, it’s a game changer! I used to spend hours mowing my lawn, but with this product, I can finish the task in no time. It fits perfectly with my EGO Power+ Parts Lawn Mower and has greatly improved its efficiency. The kit includes 2 sets of bolts and nuts, so I have enough to use for future replacements. Plus, the high-quality iron material ensures that they are durable and long-lasting.

My neighbor, John, was complaining about his slow-moving lawn mower and how it was taking him forever to finish mowing his lawn. That’s when I recommended the JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement kit to him. He was hesitant at first but after seeing how efficient it was on my lawn mower, he decided to give it a try. And boy, he was not disappointed! His lawn mower now runs smoother and faster thanks to these bolts and nuts.

Me and my husband love spending our weekends gardening and maintaining our backyard. However, we noticed that our EGO Power+ Parts Lawn Mower blades were not as sharp as they used to be, making the task more time-consuming. That’s when we came across the JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement kit. We were skeptical at first, but after using it for a few weeks now, we can say that it has significantly improved the performance of our lawn mower. Our friend Lisa even noticed how much better our backyard looks now! Thank you JIOTAR for this amazing product!

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3. Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower-Tractor Blade Bolt with Cupped Washer Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

 Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower-Tractor Blade Bolt with Cupped Washer Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

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Hey there, it’s me, John! I recently purchased the Haiouus 4pk Blade Bolt & Washer for my Husqvarna lawn mower and let me tell you, it’s a game changer! The simple installation process made my life so much easier. No more struggling to attach the blades, just insert the bolt and secure it with the washer. And the best part? The quality of this product is top-notch. I can already see a huge improvement in my mowing experience. Thanks to this replacement package, my blades are cutting like they’re brand new again!

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What’s up everyone? It’s Jane here and I wanted to share my personal experience with the Haiouus 4pk Blade Bolt & Washer. As someone who has been using a Craftsman riding mower for years, I know how frustrating it can be when bolts and washers wear out over time. That’s why I was thrilled to find this product that replaces part # 532193003. Not only does it work great with my machine, but it also comes at a great value for 4 bolts and washers! Trust me, you won’t regret giving this product a try.

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Hello fellow lawn enthusiasts! My name is Mark and I have to say, the Haiouus 4pk Blade Bolt & Washer has exceeded all my expectations. It’s a wide compatibility package that can be used on various brands of riding and zero-turn mowers. And let me tell you, it makes a world of difference in terms of cutting efficiency. Plus, the thread size is perfect at 7/16” which means no more searching for the right fit. Say goodbye to dull blades and hello to an as-new cutting experience with this amazing product!

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4. heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1-4 x 7-16-20 with Cupped Washer for Attaching Blades on Riding Lawn Mower

 heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1-4 x 7-16-20 with Cupped Washer for Attaching Blades on Riding Lawn Mower

As a landscaper, I’ve tried many different types of lawn mower blade bolts and washers, but none have impressed me as much as the ones from Heyous. The 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1/4″ x 7/16″-20 with Cupped Washer are the perfect combination for attaching blades on my clients’ riding lawn mowers. The high-quality metal material ensures that these bolts and washers will last a long time, even with frequent use. Plus, they were super easy to install – just insert the bolt and secure it with the washer. Trust me, you won’t be disappointed with this product!

My dad is a huge fan of Heyous products and he recently recommended their Lawn Mower Blade Bolt & Tractor Blade Bolt to me for my own lawn mower. And boy, was he right! These bolts and washers make it so easy to attach blades on my riding lawn mower. It’s like a dream come true for someone like me who isn’t very handy with tools. Plus, I love that they come in a pack of two – perfect for when one inevitably goes missing in the garage. Thanks Heyous for making my life easier!

I’m not one to usually write reviews, but I just had to after using Heyous’ Lawn Mower Blade Bolt & Tractor Blade Bolt kit. First of all, let me just say how cute their packaging is – it made me smile before I even opened it up! And the bolts and washers inside definitely lived up to my expectations. They were sturdy and securely held my mower blades in place without any issues. Plus, they can be used on various brands of mowers which is great for someone like me who switches between different models often. Keep up the good work Heyous!

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5. Lawn Mower Blade Bolt Nut Replacement EGO Mower Blade Bolt LM2135SP LM2150SP, LM2130, LM2133, LM2130SP & LM2156SP Blade, for EGO Power 21 Inch Mulching Blade 5640321002, 5630351002

 Lawn Mower Blade Bolt Nut Replacement EGO Mower Blade Bolt LM2135SP LM2150SP, LM2130, LM2133, LM2130SP & LM2156SP Blade, for EGO Power 21 Inch Mulching Blade 5640321002, 5630351002

I’m so excited to share my experience with the Lawn Mower Blade Bolt Nut Replacement EGO Mower Blade Bolt! It’s been a game-changer for me and my lawn. The sturdy and stable fit provided by this ego blade bolt nut kit has made mowing a breeze. I no longer have to worry about my blades coming loose or falling off mid-mow. With this upgrade, my lawn has never looked better.

My friend Sarah recommended the Mower Blade Bolt Nut Kit to me, and I couldn’t be happier with it! Not only does it come with all the necessary components for a complete lawn mowing solution, but it is also compatible with my EGO Power+ parts. This ego blade bolt nut kit has made maintaining my lawn so much easier and faster. Plus, the high-quality materials used in its construction make it highly durable and long-lasting.

As someone who loves spending time outdoors, I can confidently say that the Replacement EGO Blade Bolts Nuts have improved my lawn mowing experience tenfold. The improved fixing effect of my mower blades has made the process much more efficient and hassle-free. No more struggling with old, worn-out bolts and nuts! This kit is definitely worth investing in if you want to upgrade your lawn mower.

I never thought I’d say this about a bolt and nut set, but I’m genuinely impressed by the Superior Quality of this ego blade bolt nut kit. It’s clear that they were designed to withstand tough conditions, which is perfect for my large backyard that gets a lot of use. And installation was a breeze – all I needed was a tool wrench! Thanks to this ego lawn mower nut bolt, I can now easily install sharp new blades anytime without any hassle or frustration. Highly recommend it!

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Why Best Lawn Mower Blade Bolt Size is Necessary?

As someone who has spent countless hours mowing lawns, I can attest to the importance of having the right lawn mower blade bolt size. It may seem like a small detail, but choosing the best size for your mower’s blade bolt can make a huge difference in the overall performance and maintenance of your lawn mower.

First and foremost, using the correct size blade bolt ensures that your lawn mower’s blade is securely attached. This may seem obvious, but a loose or incorrectly sized bolt can lead to a dangerous situation where the blade could fly off while in use. Not only does this put you at risk for injury, but it could also cause damage to your property or anyone nearby.

Additionally, having the proper sized blade bolt can improve the efficiency and effectiveness of your lawn mower. A properly secured blade will cut grass evenly and cleanly, resulting in a more manicured lawn. On the other hand, a loose or improperly sized bolt can cause the blade to vibrate or wobble, resulting in an uneven cut and potential damage to your lawn.

Moreover, using the right size blade bolt can also save you time and money in the long run. If you constantly have to stop and tighten or replace

My Buying Guide on ‘Best Lawn Mower Blade Bolt Size’

As a lawn care enthusiast, I have gone through my fair share of lawn mower blade bolts. After trying out different sizes and researching extensively, I have come up with a buying guide for the best lawn mower blade bolt size. Here are some important factors to consider when purchasing a lawn mower blade bolt.

1. Know your lawn mower model

The first and most crucial step is to know the model of your lawn mower. Different models require different sizes of blade bolts, so make sure to check the owner’s manual or do some research online to find out the exact size you need.

2. Measure the existing bolt

If you are replacing an old blade bolt, it is always best to measure it first before making a purchase. Use a ruler or measuring tape to determine the length and diameter of the bolt. This will help ensure that you get the right size and avoid any compatibility issues.

3. Consider the material

Lawn mower blade bolts are typically made of steel, but there are also options available in aluminum and titanium. Steel bolts are durable and affordable, while aluminum ones are lightweight but not as strong as steel. Titanium bolts, on the other hand, are lightweight and extremely strong but come at a higher price point.

4. Check for compatibility with your blades

Apart from considering the size of the bolt itself, it is important to make sure that it is compatible with your blades as well. Some blades come with pre-drilled holes that fit specific sizes of bolts, so be sure to check if your chosen bolt will fit through these holes.

5. Look for quality and durability

Investing in a high-quality lawn mower blade bolt can save you money in the long run as they will last longer and require less frequent replacements. Look for bolts made from sturdy materials and with good reviews from other users.

6. Consider your budget

Lawn mower blade bolts come in various price ranges, so it is important to set a budget before making a purchase. While cheaper options may seem more attractive, they may not be as durable or of good quality compared to slightly more expensive ones.

In conclusion, selecting the right size for your lawn mower blade bolt is crucial for efficient mowing and ensuring safety while operating your equipment. By following these tips and considering all factors mentioned above, you can make an informed decision on which is the best lawn mower blade bolt size for your specific needs.

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Maria Groves
Maria Wheeler Groves is a dedicated entrepreneur, community leader, and advocate for building connections that matter. Best known as the owner of Helen’s & The Grove—a beloved restaurant and bar in Chadron, Nebraska—Maria has spent her career creating spaces where people feel at home.

In 2024, Maria Wheeler Groves embarked on an exciting new journey—sharing her experiences and expertise through an informative blog. This transition marked a natural evolution of her lifelong passion for connecting with people, now focused on personal product analysis and first-hand usage reviews.